2nd largest cruise ship in the world 2023

20 Biggest Cruise Ships In The World As Of 2023

From opulent suites to onboard surfing, explore some of the world's biggest and most luxurious cruise ships in the world for 2023.

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These Cruise Ships Just Keep Getting Bigger!

• Cruise ships are growing larger and larger, with some of the newest ships in 2022, 2023, and 2024 being the largest in the world.
• Royal Caribbean dominates the cruising sector and has recently launched Icon of the Seas and Utopia of the Seas, which are breaking size and tonnage records.
• These massive cruise ships are like floating cities, with numerous decks, amenities, and activities to accommodate thousands of passengers.

Since the first trans-Atlantic cruises launched over a century ago, cruise ships have grown steadily. It is not just about the number of passengers and the crew's quarters ( and their lives on board the ship ) but also the vessel's size. Today's cruise ships are so large that they can be considered floating cities—some even come with their own private islands!

Love the idea of starting a new adventure at every destination or just craving a relaxing getaway in the lap of luxury? While there are no disappointments on the largest cruise ships in the world as of 2022 , 2023, and 2024 promise even bigger and amenity-packed vessels.

UPDATE: 2023/11/29 10:22 EST BY NOAH STAATS

This article has been refreshed with two of the newest 'big' ships in the water this year, including two new monoliths from Royal Caribbean. Whether it's the Icon or Utopia of the Seas, remember to book a room with a view. These are mini-cities!

RELATED: Royal Caribbean Unveils Their Icon Of The Seas Cruise Ship

1 Icon of the Seas

One of the more exciting announcements from Royal Caribbean has been the creation of its largest ship ever: Icon of the Seas. This mega-ship boasts the title of largest in the world, as well as being a new flagship design from the brand. Royal Caribbean has always dominated the cruising sector, but with Icon of the Seas, they bring that title to a new extreme. The ship will have 20 decks, be 1,200 feet long, and weigh 250,800 gross tons. That makes it more of a mini city than a typical cruise liner, with Icon of the Seas breaking all records.

• Gross tons: 250,800
• Length: 1,200 ft
• Width: 213 ft

Utopia of the Seas

• Gross tons: 236,860
• Length: 1,188 ft
• Width: 211 ft

P&O Arvia

• Gross tons: 185,000
• Length: 1,132 ft
• Width: 138 ft

MSC World Europa

• Gross tons: 215,863
• Length: 1,092 ft
• Width: 154 ft

Wonder Of The Seas

• Gross tons: 235,600
• Width: 215 ft

Symphony Of The Seas

• Gross tons: 228,081
• Width: 215.5 ft

Harmony Of The Seas

• Gross tons: 226,963

Allure Of The Seas

• Gross tons: 225,282
• Length: 1,187 ft

Oasis Of The Seas

• Gross tons: 226,838
• Length: 1,180 ft
• Width: 198 ft

P&O Iona

• Gross tons: 184,700
• Length: 1,129 ft

• Gross tons: 183,900
• Length: 1,106 ft

MSC Grandiosa

• Gross tons: 181,541
• Length: 1,087 ft
• Width: 141 ft

Costa Smeralda

• Length: 1106 ft

Norwegian Bliss

• Gross tons: 168,02
• Length: 1,094 ft
• Width: 136 ft

Queen Mary 2

• Gross tons: 149,215
• Width: 134 ft

Queen Elizabeth 2

• Displacement: 49,738
• Gross tons: 70,327
• Length: 963 ft
• Width: 105 ft

Viking Octantis

• Gross tons: 30,150
• Length: 665 ft
• Width: 77 ft

Viking Polaris

Carnival Mardi Gras

• Gross tons: 180,000
• Length: 1129 ft

Spectrum Of The Seas

• Gross tons: 169,379
• Length: 1138 ft

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World’s 2nd largest cruise ship Utopia of the Seas set in water

Royal Caribbean’s next Oasis-class ship Utopia of the Seas was put into the water for the first time last weekend as construction continues ahead of its debut in 2024 from Port Canaveral.

While new class of ship Icon of the Seas debuting in Miami in January will take the title of world’s largest cruise ship, Utopia will hold the No. 2 spot, projected to be incrementally larger than sister ship Wonder of the Seas at 236,860 gross tons. It will be the same length at 1,188 feet long, slightly less wide at 211 feet, still with 18 decks, but with 33 less staterooms so a smaller 5,668-passenger capacity based on double occupancy.

The float out, which is the ship’s first taste of water, occurred during a nearly 15-hour operation that featured the ship’s dry dock getting filled with 46 million gallons of water Sept. 22 into Sept. 23 at the Chantiers de l’Atlantique shipyard in Saint-Nazaire, France.

Construction began in April 2022 and over the last 17 months, the vessel has come together with the assembly of 74 blocks of steel. More work has to be completed, though, as it’s not due to arrive to Central Florida until July.

That includes outfitting the exterior decks with the open-air structures including what will be the longest dry slide at sea as Utopia’s version of the Ultimate Abyss will be 295 feet long, 43 longer than its sister ships’ versions. The ship’s outdoor features will also include eight hot tubs, five pools, three Perfect Storm waterslides, Flowrider surf simulator, mini golf, climbing walls and the Splashaway Bay water play area.

The ship is taking on three- and four-night Bahamas sailings from Port Canaveral replacing Allure of the Seas that is slated to begin the short sailing duties this fall, which will be a first for Royal’s Oasis class. The sailings each will visit Nassau and Royal Caribbean’s private island Perfect Day at CocCay.

Royal plans to keep two Oasis-class ships at the port year-round as Wonder of the Seas will continue seven-night sailings. That will make Port Canaveral home to the two latest versions of the Oasis-class ships, the first five of which took the title of world’s largest cruise ship for a time until upended by their younger sister ships. Oasis of the Seas started it in 2008 followed by Allure of the Seas in 2009, Harmony of the Seas in 2016, Symphony of the Seas in 2018 and Wonder of the Seas in 2022. All but Symphony will have spent some time calling Port Canaveral home.

Utopia of the Seas will also be the first Oasis-class ship to run on liquefied natural gas, a cleaner burning fuel that is among the cruise industry’s efforts to reduce their ships’ carbon footprint. Icon of the Seas will also sail with LNG. Port Canaveral was the first North American port to home port an LNG cruise ship when Carnival’s Mardi Gras arrived in 2021 followed by Disney Wish in 2022.

While Utopia of the Seas will have most of the same features as its sisters ships, some unique offerings include a new tiki bar concept called the Pesky Parrot that will be situated indoors on the Promenade offering fruit-based cocktails and frozen drinks.

Also coming is an interactive dining experience themed as if participants are riding in a classic train car. The multicourse meal looks to allow for a simulated trip to different destinations, with changing storylines married to the cuisine.

In a move that’s also going to be on Icon, Central Park will be the new home for Izumi hibachi and teppanyaki, including the offshoot Izumi in the Park, a walkup outdoor venue that serves fresh sushi and Japanese-inspired sweets. Giovanni’s Italian Kitchen & Wine Bar and Gio’s Terrazza meanwhile will become a two-story affair including a new outside terrace that overlooks the Boardwalk neighborhood and its aft-view of the ocean. This takes the space of specialty restaurant Wonderland, which won’t be on board.

Southern cuisine will be back with the venue The Mason Jar that debuted on Wonder. Also on board will be steakhouse Chops Grille, 150 Central Park, Coastal Kitchen, Hooked Seafood, Playmakers Sports Bar & Arcade, Johnny Rockets, the main dining room and Windjammer buffet among others.

More than 20 bar and entertainment options will be on board including five live music venues: Spotlight Karaoke, Latin music at Boleros, cover bands at Music Hall, English pub Bell & Barley and the piano found at Schooner Bar.

For its main show entertainment, new show titles have yet to be revealed, but it will have its three main performance venues with Broadway-style shows at the Royal Theater, a new diving and aerobatic show in the AquaTheater, new ice-skating performances in Studio B as well as comedy in The Attic.

More details at royalcaribbean.com/utopia.

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Subscriber only, travel | royal caribbean reveals name for 2nd of world’s largest cruise ships.

The cruise line announced that ship’s name Thursday going with Star of the Seas, which will begin sailing in summer 2025, although details about the ship and where it will be home ported were not revealed.

It’s the second in the line’s new Icon class, which the line said would include class-specific features “from the beach retreat to the resort escape and the theme park adventure – the lineup of new experiences and favorites on Star will set the stage for even more ways for every type of family and adventurer to make memories without compromise.”

The class features 20 decks and comes in at 250,800 gross tons at 1,198 feet long. That bumps down the current title holders among the Oasis class that debuted in 2008 with Oasis of the Seas. The line made successive ship slightly larger so each held the title of world’s largest cruise ship with Allure of the Seas in 2009, Harmony of the Seas in 2016, Symphony of the Seas in 2018 and current title holder Wonder of the Seas in 2022. Port-Canaveral bound Utopia of the Seas debuting next summer won’t earn the No. 1 spot set to fall to second after Icon’s debut.

How much bigger are Icon class ships?

Wonder comes in at 235,600 gross tons and 1,188-foot-length. Icon of the Seas will actually have less passenger capacity based on double occupancy — 5,610 compared to Wonder’s 5,734. The size of the rooms among 28 categories, and the expected growth of family traveling, though, means Icon of the Seas’ maximum capacity of 7,600 exceeds Wonder’s 7,084.

Both Icon of the Seas and Star of the Seas remain under construction at the Meyer Turku shipyard in Turku, Finland, although Icon has already undergone sea trials and will make the transatlantic voyage to Florida on Dec. 23 ahead of a series of preview sailings in January and it’s first sailing with normal customers beginning Jan. 28, 2024,

A third Icon class ship is due in 2026.

Demand prompts Royal Caribbean to open more Icon of the Seas sailings

“The idea of combining the best of every type of vacation into one ultimate adventure has created more excitement than ever anticipated, and Star of the Seas will be the next bold answer to the record-breaking consumer demand we’ve seen for nearly a year and counting with Icon of the Seas,” said Royal Caribbean President and CEO Michael Bayley in a press release.

The ship will become the third powered by liquefied natural gas, a cleaner burning fuel that’s part of cruise lines’ efforts to reduce emissions. It joins Icon of the Seas and next year’s Utopia of the Seas among the line’s LNG ships. Only PortMiami and Port Canaveral are set up for LNG fueling.

The ship will also be set up with shore power connections, meaning it doesn’t have to burn fuel while in port, another effort among cruise lines to reduce their carbon footprint, and part of Royal’s goal of reaching a net zero cruise ship by 2035.

Star of the Seas will follow Icon’s footprint, which features a six-slide waterpark, seven pools, the new Surfside family neighborhood at the aft of the ship, and the massive glass dome that makes up the new AquaDome neighborhood at the top of the ship.

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The World’s Largest Cruise Ship Is Nearly 1,200 Feet Long

Scheduled to debut in January, the vessel can accommodate 5,600 guests and 2,350 crew members

Daily Correspondent

The world’s largest cruise ship is almost ready to set sail.

Royal Caribbean’s massive new ship, Icon of the Seas , passed its inaugural round of sea trials with flying colors, bringing it one step closer to hitting the open ocean with passengers, the cruise line  announced late last month. If all goes as planned, the record-breaking vessel will begin sailing in the Caribbean in January 2024.

Just how big is Icon of the Seas ? Really big. As Jalopnik ’s Ryan Erik King writes, it’s the size of five Titantics. More specifically, Icon of the Seas measures 1,198 feet long—nearly a quarter of a mile—and has a gross tonnage of 250,800. All that space means it can accommodate 5,600 guests and 2,350 crew members.

The cruise line is positioning the vessel as “the ultimate family vacation,” as CEO Michael Bayley told reporters earlier this year, per  CNN ’s Maureen O’Hare.

“When you step back and look at all the energy and time that has gone into creating this ship, it is mind-blowing,” he added.

The previous world’s largest cruise ship was also a Royal Caribbean vessel, Wonder of the Seas , which spanned 1,188 feet long and featured 18 decks.

Crews in Turku, Finland, began work on Icon of the Seas in 2021. Last month, the vessel sailed the open ocean for the first time, as staffers spent four days testing the main engines, hull, brakes, steering system and other components. They also measured noise and vibration levels. 

The vessel will undergo another round of sea trials later this year before officially launching in Miami early next year, according to Royal Caribbean. Icon of the Seas will primarily take cruisers to the islands of the eastern and western Caribbean on seven-night itineraries.

With progress on Icon of the Seas moving along, Royal Caribbean has already started building another large “icon class” ship. The cruise line expects that unnamed vessel to launch in 2025, per a  statement .

Icon of the Seas has 20 total decks, 7 swimming pools and 8 “neighborhoods,” or distinct areas with entertainment and dining. Another noteworthy feature is Category 6, which will be the largest waterpark at sea when Icon of the Seas sets sail.

The ship will be equipped with a special grooming robot that will clean the hull whenever it’s in port to help reduce drag and improve fuel efficiency by 3 to 4 percent, reports  TTG Media ’s Charlotte Cullinan.

Icon of the Seas will also be the first ship in the cruise line’s fleet to run on liquefied natural gas and  fuel cells , which are similar to batteries but do not need to be recharged. Water is the main byproduct of fuel cells—which combine oxygen and hydrogen to produce energy—which should help the ship reduce its greenhouse gas emissions.

Liquefied natural gas , meanwhile, is a controversial energy source that involves cooling natural gas to a liquid state to make it easier to transport. The liquid version is “actually worse than ordinary gas,” writes the  Natural Resources Defense Council . “The energy required to chill, ship and regasify the fossil fuel makes it far more carbon-intensive and increases the potential for leakage of dangerous methane,” according to the organization.

Royal Caribbean’s leaders say they view liquified natural gas as a “ transitional fue l,” and that they hope to continue to  reduce the environmental impact of their ships moving forward. 

"[Liquefied natural gas] is about 20-30 percent better for the environment [than heavy fuel oil], but it’s still not going to be the solution,” Bayley tells TTG Media . “We don’t know the answer, but the whole industry is working towards the answer.”

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Sarah Kuta | READ MORE

Sarah Kuta is a writer and editor based in Longmont, Colorado. She covers history, science, travel, food and beverage, sustainability, economics and other topics.

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Today’s cruise lines are building bigger and better cruise ships regularly. These floating cities are now reaching unimaginable sizes and offering guests incredible amenities.

The Biggest Cruise Ships in the World

Cruise Addicts has rounded up and listed the worlds top ten biggest cruise ships in the world by gross tonnage (which is a measure of volume, and not weight). You will also find some other useful information and statistics to show incredible size these floating resorts have to offer guests.

When she is completed Icon of the Seas (shown above) will be joining our list when she enters service in January 27, 2024. She will then take her place as the largest cruise ship at 250,800 gross tonnage.

What’s the Largest Cruise Ship in the World?

Currently the largest cruise ship in the World is Wonder of the Seas by Royal Caribbean International. She is an incredible 235,600 gross tones and is part of the popular Oasis Class and can hold a total of 7,084 passengers.

Keep in mind that this list of biggest cruise ships in the world changes annually as cruise lines regularly updating their fleets. Take a look at our list of the biggest cruise ships in the list below.

1.  Wonder of the Seas  (Royal Caribbean)

Wonder of the Seas  is the fifth ship in the popular  Oasis Class  and is 235,600 GT’s. She carries   5,734 passengers (based on two per cabin) with a total guest capacity of 7,084. Wonder of the Seas is the first ship in the Oasis Class to feature 8 neighborhoods with the addition of the new  Suite Neighborhood . She also received other design enhancements to the Windjammer Café and other areas and is the first ship to include the popular restaurant,  The Mason Jar . The Godmother of the ship is Marie McCrea.

Wonder of the Seas  Stats

• Cruise Line:  Royal Caribbean
• Entered Service:  March 4, 2022
• Gross Tonnage:  235,600
• Length:  1,188 ft
• Decks:  18
• Staterooms:  2,867
• Passenger Capacity:  5,734 (Double) / 7,084 (Total)
• Crew Capacity:  2,204

2.  Symphony of the Seas  (Royal Caribbean)

Symphony  of the Seas   is the fourth ship in the Oasis Class and is 228,081 GT’s. She carries 5,518 passengers (based on two per cabin) with a total guest capacity of 6,680. The 18 deck ship ship includes 7 neighborhoods and the Ultimate Family Suite. You can also take a ride of the Ultimate Abysss, which is a 10-story dry slide. The GodFamily of the ship are the PeneVegas family which includes Alexa, Carlos and Ocean.

Symphony of the Seas Stats

• Entered Service:  April 7, 2018
• Gross Tonnage:  228,081
• Staterooms:  2,759
• Passenger Capacity:  5,518 (Double) / 6,680 (Total)
• Crew Capacity:  2,200

3.  Harmony of the Seas  (Royal Caribbean)

Harmony  of the Seas  is the third ship in the  Oasis Class  and is 226,963 GT’s. She carries   5,479 passengers (based on two per cabin) with a total guest capacity of   6,687. The 18 deck ship took her maiden  voyage  on May 29, 2016. Her Godmother is Brittany Affolter.

Harmony of the Seas Stats

• Entered Service:  May 29, 2016
• Gross Tonnage:  226,963
• Decks: 18
• Staterooms:  2,747
• Passenger Capacity:  5,479 (Double) / 6,687 (Total)

4.  Oasis of the Seas  (Royal Caribbean)

The revolutionary  Oasis   of the Seas  is the first ship in the Oasis Class and is 226,838 GT’s. She carries   5,602 passengers (based on two per cabin) with a total guest capacity of   6,771. The ship features 7 different neighborhoods and highlights like the Portside BBQ, Ultimate Panoramic Suite, Music Hall, Ultimate Abyss (10-story dry slide), The Perfect Storm waterpark and more. Her Godmothers are Gloria Estefan, Michelle Kwan, Dara Torres, Keshia Knight Pulliam, Shawn Johnson, Jane Seymour and Daisy Fuentes.

Oasis of the Seas Stats

• Entered Service:  December 5, 2009
• Gross Tonnage:  226,838
• Length:  1,187 ft
• Staterooms:  2,801
• Passenger Capacity:  5,602 (Double) / 6,771 (Total)
• Crew Capacity:  2,300

5. Allure of the Seas (Royal Caribbean)

Allure   of the Seas  is the second ship in the  Oasis Class  and is 225,282 GT’s. She carries   5,496 passengers (based on two per cabin) with a total guest capacity of   6,826. The 18 deck ship took her maiden voyage on Dec 5, 2010. The ship features 7 different neighborhoods and highlights featuring a Central Park, Carousel, Zip Line ride and an Aquatheater. Her Godmother is  Princess  Fiona.

Allure of the Seas  Stats

• Entered Service:  December 5, 2010
• Gross Tonnage:  225,282
• Staterooms : 2,742
• Passenger Capacity: 5,496 (Double) / 6,826 (Total)
• Crew Capacity:  2,054 

6.  MSC World Europa  (MSC Cruises)

At 1,093 ft. long, 22 decks high and with 430,556 sq. ft. of public space,  MSC World Europa  is MSC Cruises’ longest ship in the fleet, but this space is not just for show. The increased size means that the ship will offer a variety of novel and engaging experiences to be enjoyed by one and all.

One of the key features of the completely reimagined ship is The Spiral – a striking architectural centerpiece in the form of a dry slide spanning 11 decks – the longest at sea! The sleek curves of the impressive stainless-steel slide make it a true work of art as well as a fun way to get from the top of the ship to the promenade.

MSC World Europa Stats

• Cruise Line:  MSC Cruises
• Entered Service:  December 2022
• Gross Tonnage:  215,863 tons
• Length: 1,093 feet
• Decks:  16
• Staterooms:2700
• Passenger Capacity:  5,400 (Double) / 6,762 (Total)

7. Costa Smeralda (Costa Cruises)

The LNG powered  Costa Smeralda  was built in 2019 and is one of the line’s Excellence Class ships .

Costa Smeralda Stats

• Cruise Line:  Costa Cruise Lines
• Entered Service:  2019
• Gross Tonnage:  185,010
• Length:  1,106 feet ft
• Decks:  20
• Staterooms:  2,614
• Passenger Capacity: 5,224 (TWO) / 6,554 (Max)
• Crew Capacity:  1,646

8.  Costa Toscana  (Costa Cruises)

Costa Toscana Stats

The LNG powered  Costa Toscana was built in 2022 and is one of the line’s Excellence Class ships.

• Entered Service:  March 2022
• Gross Tonnage: 1 82,700
• Length:  1,105 ft
• Decks:  19
• Staterooms:  2,663
• Passenger Capacity:  6,600 passengers
• Crew Capacity:  1,678

9. P&O Iona (P&O Cruises)

P&O Iona Stats

At 185,000 tonnes, 1131 feet in length with 16 guest decks, Iona is P&O Cruises second ship to be powered by liquefied natural gas (LNG), the marine industry’s most advanced fuel technology to date.

• Cruise Line:  P&O Cruises
• Entered Service:  August 2021
• Gross Tonnage: 184,700
• Length: 1,128 ft
• Decks:  15
• Passenger Capacity:   5,200 passengers
• Crew Capacity:  1,800

10.  P&O Arvia  (P&O Cruises)

At 185,000 tonnes, 1131 feet in length with 16 guest decks, P&O Arvia is P&O Cruises second ship to be powered by liquefied natural gas (LNG), the marine industry’s most advanced fuel technology to date. Arvia has an optimised hull design to minimise drag and is installed with the latest energy-efficient technology on board.

P&O Arvia Stats

• Entered Service: December 15, 2022
• Gross Tonnage:  185,000
• Passenger Capacity:  5,734

Looking Ahead at  Icon of the Seas

Join us as we take a special first look at  Icon of the Seas , the World’s next biggest cruise ship. Royal Caribbean International has revealed the highly anticipated  Icon of the Seas , the Icon of Vacations.

Arriving in late 2023 ahead of its January 2024 debut, the first  Icon Class  ship will be the travel industry’s first-of-its-kind combination of the best of every vacation.

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Top 10 Largest Cruise Ships in the World [2024 EDITION]

In the past we’ve published a list of the largest ships in the world, these include oil tankers, and offshore vessels along with cruise ships. This page will be dedicated to ranking just the largest cruise ships.

Icon of the Seas

Icon class | 248,663gt | 1,196ft loa | 160ft beam.

ICON OF THE SEAS

The Icon of the Seas is about as much of a technological marvel and an incredible feat of marine engineering as it gets. The first of it’s kind for Royal Caribbean just started sailing in 2024 so she makes the top of the list with dimensions edging out her fleetmates below.

Wonder of the Seas

Oasis-plus class | 235,600gt | 1,187ft loa | 154ft beam.

WONDER OF THE SEAS

The now second largest cruise ship in the world is currently Royal Caribbeans Wonder of the Seas. This 5,700 passenger ship, at double occupancy, is the first in the next iteration of the Oasis-class of vessels soon to be joined by her sister Utopia of the Seas.

Symphony of the Seas

Oasis class | 228,081gt | 1,184ft loa.

SYMPHONY OF THE SEAS

The 2018 built vessel is the largest in the original run of Oasis-class vessels for cruise giant Royal Caribbean. While she’s identical to the Harmony of the Seas (#3 in our list) she’s only fractionally larger, based on tonnage, so she goes above Harmony of the Seas.

Harmony of the Seas

Oasis class | 226,963gt | 1,188ft loa.

HARMONY OF THE SEAS

Harmony of the Seas launched in 2016 from STX France and sails for Royal Caribbean. The ship is a slight enhancement of the Oasis-class of vessels. The original two listed below were built in Finland. When it came time to order the next pair of vessels, Royal Caribbean opted to go with a different yard. This allowed them to make some improvements to the two new vessels. This essentially let the Harmony and Symphony reside in their own class of ships.

Allure of the Seas

Oasis class | 226,838gt | 1,181ft loa.

ALLURE OF THE SEAS

Oasis of the seas, oasis class | 225,282gt | 1,181ft loa.

OASIS OF THE SEAS

Msc world europa, world class | 215,863gt | 1,093ft loa.

MSC WORLD EUROPA

The MSC World Europa is a cutting-edge cruise ship belonging to MSC Cruises. Launched in 2022, she has a capacity for up to 6,850 passengers and a crew of approximately 2,180, it features 19 passenger decks. The ship boasts state-of-the-art facilities, including diverse dining venues, entertainment options such as theaters and a multimedia lounge, and innovative attractions like the “MSC Starship Club” with its humanoid robotic bartender. Advanced navigation systems and sustainable features underline its commitment to modern maritime technology and eco-friendly operations.

Costa Toscana

Excel class | 186,364gt | 1,067ft loa.

COSTA TOSCANA

The Costa Toscana is a remarkable cruise ship operated by Costa Cruises. Debuted in 2021, it spans about 337 meters in length and has a gross tonnage of around 185,000. Designed to accommodate up to 5,224 passengers and with a crew capacity of approximately 1,646, the ship encompasses 20 passenger decks. Onboard, passengers can enjoy a range of amenities including diverse dining options, entertainment venues like theaters and a water park.

Excel Class | 185,581gt | 1,128ft LOA

The P&O ship Arvia was launched in 2022. With ample space for up to 5,200 passengers and a crew of about 1,700, the ship encompasses 17 decks, featuring an array of amenities such as diverse dining options, entertainment venues including theaters and a SkyDome, and innovative attractions like the Altitude Skywalk and Ocean Studios.

Costa Smeralda

Excel class | 185,010gt | 1,067ft loa.

COSTA SMERALDA

Costa Smeralda is operated by Costa Cruises. Launched in 2019, the ship welcomes up to 6,554 passengers and accompanied by a crew of about 1,646, the ship comprises 20 passenger decks. Onboard, passengers can enjoy a variety of amenities including diverse dining options, entertainment venues like theaters and a lavish spa, and unique attractions such as the Colosseo, an area dedicated to entertainment and events.

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Top 10 Biggest Cruise Ships in the World 2023

Book Your Next Amazing Cruise with Travel Leader, Jeffrey Cleary

Cruise ships are getting bigger and bigger, and by the time a new world’s largest cruise ship is built, an even bigger ship is already being planned. Cruise Hive looks at the top ten biggest cruise ships in the world by gross tons.

What’s the Largest Cruise Ship in the World?

The list constantly changes as new mega-ships enter service from different cruise lines. So, what’s the largest cruise ship in the world right now?

The largest cruise ship currently in service is Wonder of the Seas , an Oasis-class vessel operated by Royal Caribbean. The ship is similar in design to her sister ships but adds some additional features and evolves the class. Wonder of the Seas is a massive 236,857 gross tons with a guest capacity of 5,734 at double occupancy. You can check the top biggest cruise ships in the list below.

1. Wonder of the Seas (Royal Caribbean)

Wonder of the Seas , the fifth Oasis-class vessel , took the world’s largest cruise ship title from her sister Symphony of the Seas . The new vessel was built at the Chantiers de l’Atlantique shipyard in Saint Nazaire, France, and delivered to the cruise line on January 27, 2022.

Just like her sister ships, Wonder of the Seas is divided into themed neighborhoods, but this ship has the addition of a new Suite Neighborhood. The eighth neighborhood offers Royal Suite Guest a Suite Sun Deck with a plunge pool, private restaurant, deck bar, and lounges. The area also has the largest Ultimate Family Suite.

Worth Reading: Wonder of the Seas vs. Titanic – A Giant Comparison

Other new features include a new southern restaurant named the Mason Jar Southern Restaurant & Bar, Wonder Playscape, and The Vue Bar. The world’s largest cruise ship departs on her maiden voyage from Fort Lauderdale, Florida, on March 4, 2022.

In January 2024, Royal Caribbean will take delivery of the new LNG-powered Icon of the Seas , which will become the new largest cruise ship in the world, shifting Wonder of the Seas to no.2 on the list.

Wonder of the Seas Stats

• Cruise Line:  Royal Caribbean
• Entered Service:  March 2022
• Gross Tonnage:  236,857
• Length:  1,188 ft
• Passenger Decks: 16
• Staterooms: 2,867
• Passenger Capacity:  5,734
• Crew Capacity:  2,300

2. Symphony of the Seas (Royal Caribbean)

Symphony of the Seas  is the fourth Oasis-class and 25th cruise ship from Royal Caribbean and is slightly larger than her sister ships making her the world’s biggest cruise ship.

Symphony of the Seas  was built at the then-named STX France shipyard and was delivered to the cruise line on March 23, 2018. The vessel departed on its first one-time special preview sailing on March 31, 2018.

The first official maiden voyage departed on April 7, 2018, on a 7-night Mediterranean voyage from Barcelona, Spain.  Symphony of the Seas  has been based in  PortMiami, Florida  since November 10, 2018.

Symphony of the Seas Stats

• Entered Service:  March 2018
• Gross Tonnage:  228,081
• Passengers:  5,518
• Crew:  2,100

3. Harmony of the Seas (Royal Caribbean)

Harmony of the Seas  overtakes the other Oasis-class ships just slightly, making her the second largest cruise ship in the world. The vessel is the first of two new orders from STX France to expand the large class ships to four.

Harmony of the Seas  was the first in the class to feature the 10-Story Ultimate Abyss slide, which is located aft of the ship above the AquaTheater. The slide has since been a major feature on new Oasis-class vessels and added during refurbishments.

Harmony of the Seas Stats

• Entered Service:  May 2016
• Gross Tonnage:  227,500
• Length:  155.6 ft
• Passengers:  5,480

4. Oasis of the Seas (Royal Caribbean)

This is the ship that helped push the cruise industry to new heights.  Oasis of the Seas  was the first of its kind when she arrived at the end of 2009. The groundbreaking vessel was built at the STX shipyard in Turku, Finland.  Oasis of the Seas  also boasts features like the Zip-line and the AquaTheater.

In 2019, The Royal Caribbean cruise ship underwent a massive $165 million upgrade , which did not just add new water slides, but also The Ultimate Abyss aft slide, new dining venues, and a refreshed look. The amplification increased the ship’s gross tonnage, and she now overtakes sister ship Allure of the Seas in the list of the world’s top 10 largest cruise ships.

Oasis of the Seas Stats

• Entered Service:  Dec 2009
• Gross Tonnage:  226,838
• Length:  1,186.5 ft
• Passengers:  5,400
• Crew:  2,394

5. Allure of the Seas (Royal Caribbean)

This ship is huge and the second in the record-breaking Oasis class for Royal Caribbean.  Allure of the Seas  has seven distinct neighborhoods and too many dining spaces to count!

The vessel is different from other large ships in the cruise industry and boasts features like the Zipline and the AquaTheater.

Allure of the Seas Stats

• Entered Service:  Oct 2010
• Gross Tonnage:  225,282
• Length:  1,187 ft
• Crew:  2,384

6. MSC World Europa (MSC Cruises)

This is the first World class vessel from the fast-growing MSC Cruises and was built at the popular Chantiers de l’Atlantique shipyard in St. Nazaire, France. Since her delivery in October 2022 , she has been the largest MSC cruise ship ever. That will be until the sister ship MSC World America arrives in 2025.

MSc World Europa is the largest cruise ship powered by Liquefied Natural Gas (LNG) and takes the cruise line into a new era of sustainability, which it’s taking very seriously. The 6th world’s biggest cruise ship features more than 30 different dining venues and a new thrilling 250-foot Drop slide located aft of the ship.

MSC World Europa Stats

• Cruise Line: MSC Cruises
• Entered Service: 2022
• Gross Tonnage: 215,863
• Length: 1,094 ft
• Passenger Capacity: 6,762
• Crew Capacity: 2,138

7. Arvia (P&O Cruises)

Arvia is the second Excel class cruise ship for British-based P&O Cruises. The vessel is slightly larger than its sister ship Iona and was constructed at the popular Meyer Werft shipyard in Papenburg, Germany. She is currently the largest in the P&O fleet and is the largest ever constructed vessel purposely for the British market.

Arvia Stats

• Cruise Line: P&O Cruises
• Gross Tonnage: 184,700
• Length: 1,130 ft
• Passenger Capacity: 5,200
• Crew Capacity 1,800

8. Costa Smeralda (Costa Cruises)

Costa Smeralda  is the cruise line’s first-ever cruise ship powered by Liquified Natural Gas (LNG). She’s also the largest vessel ever constructed for the Italian-based cruise operator.

The ship  was finally delivered  from the Meyer Turku shipyard in Finland after a delay on December 5, 2019. Her first regular voyage departed Savona on December 31, 2019; however, there was a special voyage for travel agents that departed Barcelona, Spain on December 18, 2019.

Costa Smeralda Stats

• Cruise Line:  Costa Cruises
• Entered Service:  Dec 2019
• Gross Tonnage:  185,000
• Length:  337 Meters
• Passengers:  6,600
• Crew:  1,500
• Guest Cabins:  2,600

9. Costa Toscana (Costa Cruises)

Costa Toscana is the second Excel class vessel built for Carnival-owned Costa Cruises. The LNG-powered cruise ship is the flagship of the fleet and was constructed at the Meyer Turku shipyard in Finland. She’s almost identical to the Costa Smeralda , including gross tonnage and size. The only reason she is lower than her sister ship in the largest cruise ships in the world is that she entered service in 2021 .

Costa Toscana Stats

• Cruise Line: Costa Cruises
• Entered Service: 2021
• Gross Tonnage: 185,010
• Length: 1,106 ft
• Passenger Capacity: 5,224
• Crew Capacity: 1,678

10. P&O Iona (P&O Cruises)

British-based P&O Cruises  took delivery of its largest-ever cruise ship  and first to be powered by Liquified Natural Gas (LNG) in October 2020. This came after delays due to the global pandemic and the impact on the Meyer Werft shipyard in Papengburg, Germany, which is where the vessel was constructed.

P&O Iona Stats

• Cruise Line:  P&O Cruises
• Entered Service:  2020
• Gross Tonnage:  184,089
• Length:  344 Meters
• Passengers:  5,200
• Crew:  1,800
• Guest Decks:  15

FAQ on Largest Cruise Ships

Royal Caribbean’s Wonder of the Seas is the world’s largest cruise ship in 2023. The Oasis class vessel is 236,857 gross tons and has a passenger capacity of 5,734 at double occupancy, but that goes up to 7,084 at maximum capacity. The giant cruise ship also has a crew capacity of 2,204, and there are a total of 18 decks.

Royal Caribbean’s Icon of the Seas will become the new world’s largest cruise ship when she enters service in January 2024 at a massive 250,800 gross tons and a length of 1,198 feet. The LNG-powered vessel will also have a guest capacity of 5,610 at double occupancy, which can reach a maximum of 7,600. There will be a capacity for 2,350 crew members.

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Jeffrey Cleary is an experienced travel advisor and cruise specialist with a wealth of knowledge and expertise in Caribbean and World cruises. With over a decade of experience in the travel industry, Jeffrey has developed a reputation as a trusted advisor for those seeking unforgettable Caribbean and/or World cruise experiences. "I bring a wealth of experience and knowledge in the cruise industry, along with real-world experience on many of the finest ships at sea. I love cruising myself, so I am often sailing (and reachable by clients) and experiencing the cruise lines first hand. I'll get to know you, your style, your ideal vacation and recommend an Amazing Cruise experience."

Watch: World’s Biggest Cruise Ships In 2023

The international cruise industry has expanded rapidly in the last few years and showed no signs of slowing down till the coronavirus pandemic hit the world.

The world witnessed a complete halt in the cruise business. However, cruise shipping companies are doing everything possible to sustain themselves in these challenging times.

The industry is expected to return soon with some of the largest and most technologically advanced cruise ships.

To meet the various preferences of travellers, the new technologically advanced cruise ships come in bigger sizes, with better amenities, and, indeed, are as luxurious as they can be.

Here, we list the world’s largest TOP 5 cruise ships, ranked per their gross tonnage and passenger capacity in 2023.

1. Wonder of the Seas

The Wonder of the Seas, owned by Royal Caribbean International, holds the world’s largest cruise ship title at 236,857 Gross tonnes. It belongs to Royal Caribbean’s Oasis class and can host 6,988 passengers and 2,300 crew members.

The ship is powered by four 7,500 Horsepower bow thrusters, allowing it to cruise at up to 22 knots. It boasts new amenities such as a suite neighbourhood, fully redesigned pool decks, and an all-new Aquatheatre.

2. Symphony Of the Seas

The Symphony of the Seas is the second-largest cruise ship in the world. She held the top spot until she was beaten by her sister ship, Wonder of the Seas. The giant cruise ship has 228,081 gross registered tons, measures 238 feet tall and spans 361.011 meters long.

3. Harmony of the Seas

Royal Caribbean’s Oasis-Class vessel, Harmony of the Seas, follows closely behind her sister ship. STX France built it at its Saint-Nazaire shipyard. It is the third vessel in the Oasis-Class series. With a gross tonnage of 226,963 GT, Harmony of the Seas has a maximum beam of 66m. Featuring 2,747 staterooms with virtual balconies, this biggest vessel can accommodate 5,479 guests at double occupancy.

4. Allure of the Seas

Another 362m-long Oasis-class cruise ship, Allure of the Seas, stands fourth after her sister vessel on the list. Built at the STX Europe shipyards in Turku, Finland, Allure of the Seas is the second Royal Caribbean cruise ship in the Oasis-class series.

At one point, she was the largest passenger ship in service. The vessel has a gross tonnage of 225,282 GT, a height of 72m and a maximum beam of 60.5m.

Delivered in October 2010, Allure of the Seas can house 5,400 passengers at double occupancy. Features of the luxurious cruise ship include a two-deck dance hall, a theatre with 1,380 seats, an ice skating rink, a concierge club and spa, and fitness facilities, among others.

5. Oasis of the Seas

Oasis of the Seas, the first vessel in the Oasis-class cruise ships of Royal Caribbean, was the largest cruise ship when it entered service in 2009. It is the fifth-largest cruise ship in the world. Ordered in February 2006, the vessel was launched from STX Europe’s Turku Shipyard in 2008, marking the entry of new-class ships into the fleet of Royal Caribbean International.

Oasis of the Seas measures 361.6m in overall length, 72m in height above the waterline and 22.55m in depth, while it has a gross tonnage of 225,282.

These were the top 5 biggest cruise ships in the world in 2023!

Soon, the world’s largest cruise ship will be ICON OF THE SEAS. It has completed its trial run and is ready to embark on its maiden voyage, probably around 2024.

Disclaimer: The authors’ views expressed in this article do not necessarily reflect the views of Marine Insight.  Data and charts, if used, in the article have been sourced from available information and have not been authenticated by any statutory authority. The author and Marine Insight do not claim it to be accurate nor accept any responsibility for the same. The views constitute only the opinions and do not constitute any guidelines or recommendations on any course of action to be followed by the reader.

The article or images cannot be reproduced, copied, shared, or used in any form without the permission of the author and Marine Insight. 

About Author

Zahra is an alumna of Miranda House, University of Delhi. She is an avid writer, possessing immaculate research and editing skills. Author of several academic papers, she has also worked as a freelance writer, producing many technical, creative and marketing pieces. A true aesthete at heart, she loves books a little more than anything else.

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The top 10 biggest cruise ships in the world

M odern cruise ships continue to grow in size, with the biggest cruise ship, the Icon of the Seas , launching at the start of this year, and her sister ship the Star of the Seas expected to surpass her in size.

Both of these ships are operated by Royal Caribbean International, which operates five of the ten largest cruise ships in the world. Carnival Corporation, arguably the biggest cruise company in the world, features three times on the list through its subsidiaries P&O Cruises and Costa Cruises.

All of the heaviest cruise ships in the world were built within the last 20 years, although the majority – six of the ten – were built within the last five years.

So, here are the top ten biggest cruise ships in the world, by gross tonnage. 

10. P&O Cruises MS Arvia : 185,581 gross tonnes

The MS Arvia is P&O Cruises’ fourth ship to be built by German shipyard Meyer Werft. Weighing in at 185,581 gross tonnes, the 345m (1,130-foot) Arvia is slightly larger than her sister ship, the MS Iona . The 20-deck ship is the largest ship commissioned for the British cruise market and has a maximum passenger capacity of 6,264 passengers, with 1,800 crew onboard. 

The ship is the second liquefied natural gas (LNG)-powered Excellence-class vessel for P&O, following the Iona . Arvia is powered by a 61,760kW LNG drive system, with a propulsion power of 37 megawatts. The LNG-powered propulsion system allows the vessel to sail at a maximum speed of 21.5 knots.

After being floated out in August 2022, the Arvia mainly operates itineraries around the Caribbean or the Mediterranean.

9. Costa Cruises – Costa Smeralda : 185,010 gross tonnes

The Costa Smeralda is the first LNG-powered vessel in the Costa Cruises fleet. With a gross tonnage of 185,010gt, the 20-deck Excellence-class ship measures 337m (1,106 feet) in length. The second LNG-powered cruise ship to enter operation in the world, she has a maximum capacity of 6,554 passengers with 1,646 crew and a service speed of 21.5 knots.

Construction of the Costa Smeralda began at the Meyer shipyard in Turku, Finland, in September 2017. Meyer Turku collaborated with the Meyer Werft Papenburg shipyard to develop and integrate the LNG propulsion plant for the ship. She is fitted with four 16-cylinder, Caterpillar MaK 16VM46DF engines, with 15.4 megawatts (20,710 horsepower) output per engine, resulting in a maximum power of  37 megawatts (50,000 horsepower).

The ship, which was named after the Emerald Coast of Sardinia, entered service in December 2019 , departing Savona on its maiden voyage in the Mediterranean, where it has sailed since.

8. Costa Cruises – Costa Toscana : 186,364 gross tonnes

The Costa Toscana is the sister ship of the Costa Smeralda and is also powered by LNG . measuring 337m (1,106 feet) long and weighing in at 186,364 gross tonnes, the Toscana has a maximum capacity of 6,338 passengers and 1,678 staff across her 20 decks.

Like her sister ship, the Toscana was also built at the Meyer shipyard in Finland, with construction completed in 2021. She is also powered by four MaK-Caterpillar engines, with a total power of 57.2 megawatts (76,706 horsepower), and two ABB Azipod motors , resulting in a service speed of 17 knots.

Named in homage to the Tuscany region of Italy, Costa Toscana mainly sails around the Mediterranean Sea but Costa Cruises has also used the ship to sail itineraries further afield, such as around Brazil and the UAE.

7. MSC Cruises – MSC World Europa : 215,863 gross tonnes

The only entry in the top ten from MSC Cruises, MSC World Europa measures 333m (1,094 feet) in length. With 215,863 gross tonnage, she can house more people than any other ship in the MSC fleet: up to 6,762 passengers across 2,633 cabins spread over 22 decks, in addition to 2,138 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, France, the World Europa ’s LNG-power propulsion system was subcontracted to Finland-based Wärtsilä. Five LNG-powered, 14-cylinder Wartsila 46DF dual-fuel engines power the vessel, with a propulsion power of 44 megawatts ( 59,005 horsepower). She also features nitrogen oxide reduction (NOR) units, two Wartsila LNGPac fuel storage and supply systems, seven thrusters, and two fixed-pitch propellers. 

The MSC World Europa was floated out at the end of 2021 and was initially used as an accommodation vessel for fans attending the 2022 FIFA World Cup, with the ship berthed at Doha Port in Qatar during the tournament. Following the competition, the ship subsequently travelled several routes around the UAE, before sailing to the Mediterranean, where it has sailed itineraries since.

6. Royal Caribbean International – Allure of the Seas : 225,282 gross tonnes

The first of many entries on this list operated by Royal Caribbean, Allure of the Seas weighs in at 225,282 gross tonnes. Measuring 362m (1,187 feet), she is only 50mm (2 inches) longer than her sister ship the Oasis of the Seas . The Allure has a maximum capacity of 6,780 passengers and 2,200 crew across 18 decks.

Built at the Turku Shipyard in Finland, the Allure took two years to build , floating out in 2010. She features six Wärtsilä 46 diesel engines with a total power output of 97 megawatts (130,053 horsepower). It is propelled by three electric Azipod azimuth thrusters. The ship can travel at a cruising speed of 22 knots.

With a homeport of Galveston, Texas in the US, the Allure mainly serves itineraries around the Bahamas but she is scheduled to sail routes around the Mediterranean in 2025.

5. Royal Caribbean International – Oasis of the Seas : 226,838 gross tonnes

The oldest ship on this list, the Oasis of the Seas has been in service for over a decade. She was the biggest cruise ship at the time when floated out in 2009, with a gross tonnage of 226,838gt and a length of 360m (1,181 feet). The Oasis has a maximum capacity of 6,699 passengers and 2,181 staff across 18 decks.

The Oasis took two years to build at the Meyer shipyard in Turku, Finland, with the keel laid on 12 November 2007 and the ship arriving at her homeport of Port Everglades in Florida, US, on 13 November 2009.

The Oasis is powered by eight Wärtsilä V12 diesel engines, which generate 5.6 megawatts (7,500 horsepower) each, alongside four bow thrusters. The main propulsion system consists of three 20-megawatt (26,820 horsepower) electric Azipod motors, resulting in a combined propulsion power of 82 megawatts (109,964 horsepower) and a standard cruising speed of 23 knots.

The Oasis mainly operates routes around the Caribbean, but occasionally repositions to offer itineraries in the Mediterranean.

4. Royal Caribbean International – Harmony of the Seas : 226,963 gross tonnes

The third Oasis-class ship built by Royal Caribbean, Harmony of the Seas weighed in bigger than her existing sister ships at launch in 2016, with 226,963 gross tonnage, but she has since been surpassed by newer vessels. With a total length of 362m (1,188 feet), Harmony has a maximum capacity of 6,780 passengers and 2,300 staff across 18 decks.

Royal Caribbean placed an order with STX France for the construction of Harmony of the Seas in December 2012. The first steel for the ship was cut at STX France’s Saint-Nazaire shipyard in September 2013, while the keel-laying ceremony was held in May 2014.

The Harmony is powered by three 18.9-megawatt Wärtsilä 16V46 16-cylinder main generator diesel engines and three Wärtsilä 12V46 12-cylinder engines producing 13.9 megawatts each. The propulsion power is provided by three electric Azipod azimuth thrusters and manoeuvring is assisted by four 5.5-megawatt Wärtsilä CT 3500 tunnel thrusters. The propulsion system results in 82 megawatts (109,964 horsepower) and enables the ship to sail at a standard speed of 23 knots.

Harmony of the Seas embarked on her inaugural seven-night Western Mediterranean cruise from Barcelona, Spain, in June 2016, and currently operates itineraries around the Western Caribbean from her homeport of Galveston, Texas in the US.

3. Royal Caribbean International – Symphony of the Seas : 228,081 gross tonnes

At launch in 2018, the Symphony of the Seas surpassed the Harmony as the biggest cruise ship, weighing in at 228,081 gross tonnes. Measuring 361m (1,185 feet), the Symphony has a maximum capacity of 6,680 passengers and 2,200 staff across 18 decks and was the testing ground for Royal Caribbean's new muster drill . With a total length of 361m (1,185 feet), She is roughly 30 metres (98 feet) longer than the largest military ships , the US Nimitz-class aircraft carriers and the USS Gerald R. Ford .

The keel-laying ceremony for the Symphony of the Seas was held in October 2015 at STX’s Saint-Nazaire shipyard in France, and the ship sailed out in June 2017. She is powered by six diesel sets, each composed of three Wärtsilä 16V46D engines and three Wärtsilä 12V46D engines, as well as three 20-megawatt electric Azipod main engines – resulting in 82 megawatts (109,964 horsepower) of propulsion power and a standard cruising speed of 22 knots.

The Symphony commenced her seven-day maiden voyage from Barcelona in April 2018, and since then has mainly operated itineraries around the Caribbean from her homeports of Miami, New York, and Fort Lauderdale.

2. Royal Caribbean International – Wonder of the Seas : 235,600 gross tonnes

Royal Caribbean's flagship, Wonder of the Seas is the fifth Oasis-class cruise ship built for the cruise company. Weighing in at 235,600 gross tonnes, the Wonder was the largest ship in the world when she was completed in January 2022. Measuring 362m (1,187 feet) in length, the 18-deck Wonder has a maximum capacity of 7,084 guests across its 2,867 staterooms, as well as housing 2,369 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, Wonder is powered by two Wärtsilä 16V46D engines and four Wärtsilä 12V46D engines; and uses three 20-megawatt electric Azipod engines for propulsion, combining for a propulsion power of 82 megawatts (109,964 horsepower and a standard cruising speed of 22 knots.

The Wonder sailed her maiden voyage in March 2022 from Fort Lauderdale, Florida, and has since served itineraries around the Caribbean from her homeports of Miami and Cape Canaveral.

1. Royal Caribbean International – Icon of the Seas : 248,663 gross tonnes

Weighing 248,663 gross tonnes and measuring 365 metres (1,1967 feet), the Icon of the Seas is the largest cruise ship in the world. Christened on 23 January 2024, the Icon has a maximum capacity of 7,600 passengers and 2,350 crew across 20 decks. She is the lead ship of the new Icon-class, with a sister ship the Star of the Seas due to be delivered in 2025 and another ship planned for delivery in 2026.

Built by Meyer Turku in Finland, the Icon is the first ship in the Royal Caribbean fleet that can be powered by LNG. It uses three Wärtsilä 14V46DF and three Wärtsilä 12V46DF for its main generator engines, which provide 67.5 megawatts of energy to run the ship. She is propelled by three 20-megawatt Azipod thrusters as well as five 4.8-megawatt Wärtsilä WTT-45 CP bow thrusters, with a cruising speed of 22 knots.

After sailing her maiden voyage on 27 January 2024, the Icon now sails year-round itineraries of seven-night trips around the Eastern and Western Caribbean from her homeport of Miami, Florida.

"The top 10 biggest cruise ships in the world" was originally created and published by Ship Technology , a GlobalData owned brand.

The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site.

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Largest Navies in the World 2024

We humans may live predominantly on land, but the fact remains that 71% of the Earth's surface is covered in water. With such an overwhelming abundance of seas, rivers, and lakes, it’s no surprise that civilizations have been feuding over sea passages and strategic water-based territory since before the Bronze Age. In an attempt to more convincingly preside over these territories, many nations have assembled truly magnificent naval fleets.

What country had the largest navy of all time?

The largest naval fleet of all time belonged to the United States during World War II. At its peak, the U.S. Navy consisted of 6,768 vessels. Since that peak, most countries around the world have reduced the size of their navies, investing in fewer, but more capable ships or other assets entirely. In light of this sea change, it is unlikely that any future navy will ever have more ships than the WWII-era U.S.

Top 10 Largest Navies in the World (by total number of warships and submarines - 2020):

Modern navies and why "largest" does not mean "most powerful".

While the above data are helpful, it's vital to keep in mind that they can also be misleading. Size is one thing, but strength is something else entirely. Navies can be made up of a wide variety of ships, from antiquated 180-foot-long patrol boats to 500-foot submarines armed with nuclear missiles to state-of-the-art 1000-foot aircraft carriers laden with up to 90 fighter planes and/or attack helicopters. Yet, when totaling the number of ships in a country's navy, each of these three very different vessels counts as the same thing: one ship. This is akin to saying a squirrel is the same as a rhino, or a scooter is the same as an 18-wheel semi-truck. But it's what happens when navies are compared based solely on their total number of ships.

What's more, different sources have contrasting guidelines about which types of ship they consider part of a country's navy. For instance, China 's navy includes more than 100 hovercraft, which sources may or may not consider navy ships. Also, most modern navies incorporate not just commissioned ships on active duty, but non-commissioned ships, support vessels, reserve fleets, and even under-construction ships, which some sources count and others do not. The way a given source handles variables such as these can have a massive effect on the total number of ships a country's navy is estimated to have.

For example, the producers of the list above estimated that in 2020, the United States Navy had 490 ships and China's navy had 777 ships. By comparison, the United States Department of Defense's official assessment for 2020 considered China's navy the largest in the world with 355 ships and counted the United States as having only 293. Why are those estimates so different? Most likely, the DoD estimate included fewer classes of ship. Case in point: The DoD report states that its China total "does not include 85 patrol combatants and craft that carry anti-ship cruise missiles (ASCMs)", and appears to also exclude more than 100 non-commissioned support ships operated by the U.S. Military Sealift Command. Other sources may well include both of these categories and more.

Because of these complications, any estimate that includes only a total number of available ships, with no accounting for ship type or condition, will fall far short of telling the full story. In an attempt to better estimate the overall power of a given navy, some analysts turn to tonnage , which is a measure of the amount of water a ship displaces or the amount of cargo it can carry, which are both indirect measurements of a ship's overall mass.

Top 10 Most Powerful Navies in the World (by total tonnage - 2014):

• United States - 3,415,893
• Russia - 845,739
• China - 708,886
• Japan - 413,800
• United Kingdom - 367,850
• France - 319,195
• India - 317,725
• South Korea - 178,710
• Italy - 173,549
• Taiwan - 151,662

While these numbers are due for an update, the tale they tell is still meaningful. North Korea falls short of the top 10 thanks to the fact that many of its ships are small, old, "brown-water" craft, meaning they are most effective in rivers, lakes, and coastlines, and perform poorly (if at all) when more than 50 miles from shore. Although North Korea’s navy has more craft than almost any other navy in the world, it still falls far short of becoming a global naval power. On the other hand, countries including the United Kingdom, Japan, and South Korea have risen up the list because although their navies are smaller, they include larger, newer, more capable vessels.

Foreseeing the future: The top 5 navies in the world by 2030

While the present day is obviously important, some military analysts are already looking toward the future. A 2021 piece on NationalInterest.org revealed expert picks for the top 5 navies of 2030, based upon the state of each country's current fleet, production/manufacturing plans, and overall naval budget.

• United States - The U.S. is expected to remain the dominant global naval power in 2030, thanks to an unmatched combination of sheer tonnage and technological advancement. The U.S. Navy doesn't just have many ships, it has many massive, cutting-edge ships.
• United Kingdom - While the U.K.'s total number of ships is expected to decline, the addition of two new aircraft carriers and the progressive updating of its submarine fleet should establish the U.K. as the #2 maritime power.
• China - The People's Liberation Army Navy (PLAN) fleet is older, but larger in number (if not tonnage) fleet than the U.S. Navy fleet, and the PLAN has ambitious plans to keep adding more and more vessels.
• India - Another Asian country expanding its naval presence, India should have three operating aircraft carriers by 2030, collectively capable of deploying 110-120 aircraft.
• Russia - This superpower's aging fleet is likely to suffer some budget constraints as older equipment is decommissioned, but Russia is still expected to have eight ballistic missile submarines (with 20 missiles each) patrolling the seas in 2030.
• The size of a country's navy is only one factor in that country's ability to effectively conduct warfare. Additional factors include the level of training given to soldiers, the age and condition of support vehicles and weaponry, and the effectiveness of strategic command.

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What are the 5 largest navies in the world?

Frequently asked questions.

• Fact Files - US Navy
• Chinese Navy is the largest navy in world, new report shows - Naval Today
• Military and Security Developments Involving the People's Republic of China 2021 - United States Department of Defense
• The United States' fighting ships, from smallest to largest - CNET
• North Korea Military Power - Defense Intelligence Agency
• Which Navies Will Be the Most Powerful In the World in 2030—and Why? - National Interest
• Navy Fleet Strength by Country (2024)

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The 21 largest cruise ships in the world.

Book your next cruise vacation on one of these floating megaresorts.

The Largest Cruise Ships in the World

Courtesy of Royal Caribbean International

With every year comes bigger and grander cruise ships.

Just when you think cruise ships can't get any larger, a major cruise line unveils yet another longer, taller and grander state-of-the-art vessel – with the capacity to carry the population of a small town. To put the size of today's megaships into perspective: They often stretch three times longer than a 120-yard football field, and some feature nearly two dozen decks or measure more than 215 feet wide.

So, if you're looking for a vacation aboard a large-scale vessel, consider booking a voyage on one of the biggest cruise ships in the world. With cutting-edge technology and entertainment, world-class dining, and endless attractions and activities for cruisers of all ages, you may not even want to leave the ship. Here are the biggest cruise ships, arranged by gross tonnage.

• 1. Royal Caribbean Icon of the Seas
• 2. Royal Caribbean Utopia of the Seas
• 3. Royal Caribbean Wonder of the Seas
• 4. Royal Caribbean Symphony of the Seas
• 5. Royal Caribbean Harmony of the Seas
• 6. Royal Caribbean Oasis of the Seas
• 7. Royal Caribbean Allure of the Seas
• 8. MSC World Europa
• 9. Costa Smeralda
• 10. Costa Toscana
• 11. P&O Cruises Arvia
• 12. AIDAcosma
• 13. P&O Cruises Iona
• 14. AIDAnova
• 15. Carnival Jubilee
• 16. Carnival Celebration
• 17. MSC Euribia
• 18. MSC Virtuosa
• 19. Carnival Mardi Gras
• 20. MSC Meraviglia
• 21. Norwegian Encore

Find your perfect cruise

Royal Caribbean Icon of the Seas

Length: 1,198 feet

Width: 213 feet

Gross tons: 250,800

Maximum number of passengers: 7,600

Icon of the Seas will be the largest cruise ship afloat when it debuts in January 2024. The next-level megaship is Royal Caribbean 's first Icon-class vessel and the first of three ships powered by liquefied natural gas, or LNG, which is considered a more sustainable alternative to other fuel options. The ship will have 2,805 staterooms and carry up to 2,350 crew. There's no end to the fun with eight unique neighborhoods, including the new Surfside: a stay-all-day space designed specifically for families.

Other features on the ship include seven pools, nine whirlpools and six record-breaking waterslides. There are also more than 20 new dining venues, such as the swanky Empire Supper Club, which features an eight-course tasting menu; the AquaDome Market, the line's first food hall; and sushi restaurant Izumi in the Park. Cruisers will also find other international cuisine, including Japanese, Mexican and Italian fare, as well as The Lemon Post, the Surfside Eatery and Pier 7 in the Surfside neighborhood.

Read: The Newest Royal Caribbean Ships

Royal Caribbean Utopia of the Seas

Length: 1,188 feet

Width: 211 feet

Gross tons: 236,860

Maximum passengers: 6,788

Royal Caribbean's first LNG-powered Oasis-class ship will sail its debut voyage in July 2024. The new ship will have 2,834 staterooms and up to 2,290 crew members, as well as eight neighborhoods to keep passengers entertained. Ten complimentary dining venues include the line's new food truck concept, The Spare Tire, which serves up handheld eats on the pool deck. The ship will also feature sloping beach-entry and resort-style pools, plus three Lime & Coconut bars on the outdoor deck.

In total, there are more than 40 dining options, bars and lounges on Utopia of the Seas. Many of Royal Caribbean's specialty dining and bar favorites are returning, such as Chops Grille, Giovanni's Italian Kitchen & Wine Bar, Rising Tide Bar and Vue Bar. Guests will also find familiar entertainment offerings with rock climbing walls, the AquaTheater, Splashaway Bay, laser tag, mini-golf, the Sports Court, Studio B and much more. With two casinos, five pools and a visit to private island Perfect Day at CocoCay, you'll never run out of things to do.

Read: The Top New Cruise Ships

Royal Caribbean Wonder of the Seas

Michel Verdure | Courtesy of Royal Caribbean International

Gross tons: 235,600

Maximum passengers: 7,084

Royal Caribbean's current largest ship at sea, Wonder of the Seas , first set sail in March 2022. The Oasis-class vessel has 2,867 staterooms and carries as many as 2,204 crew members. While you may get lost on this ship, you'll never be bored. Features include eight unique neighborhoods – such as Central Park, the Boardwalk, and the new Suite Class neighborhood, an exclusive space for suite guests.

Take advantage of the AquaTheater, an outdoor live entertainment venue with a 30-foot diving platform and incredible ocean views. Wonder Playscape is an underwater-themed outdoor space for kids filled with slides, climbing walls, games and more. You can also enjoy a few of Royal Caribbean's Oasis-class favorites, such as the FlowRider surf simulator, the rock climbing wall or laser tag at the Battle for Planet Z. If you dare, head into the Ultimate Abyss: Billed as the tallest waterslide at sea, it towers 150 feet above sea level and features an exhilarating 13-second ride through 10 stories of dark, winding tunnels.

When hunger strikes, dine at your pick of more than 20 complimentary and specialty restaurants, including the new Mason Jar Southern Restaurant & Bar. If you're craving a cold beer, a cocktail or a cup of Starbucks coffee, you'll have roughly a dozen bars and lounges at your disposal.

Read:  The Top Party Cruises

Royal Caribbean Symphony of the Seas

Width: 215.5 feet

Gross tons: 228,081

Maximum passengers: 6,680

Royal Caribbean's Symphony of the Seas , another Oasis-class ship, debuted in April 2018. This ship features 2,759 passenger staterooms and accommodates 2,200 crew members. There are seven distinct neighborhoods, four pools, roughly 20 restaurants (about half of which are specialty venues), and about a dozen bars and lounges. The ship even boasts two robotic bartenders that whip up drinks at the Bionic Bar.

Adults can enjoy Broadway-style shows in the onboard theaters and major international sports games at Playmakers Sports Bar & Arcade. Meanwhile, kids can cool down at the Splashaway Bay water park, soar on a zip line nine decks high through the Boardwalk neighborhood, try out rock climbing or attend a show at the AquaTheater.

Read:  Royal Caribbean vs. Carnival

Royal Caribbean Harmony of the Seas

Gross tons: 226,963

Maximum passengers: 6,687

Another Oasis-class ship, Royal Caribbean's Harmony of the Seas has been sailing since May 2016. The vessel features 2,747 staterooms and up to 2,200 crew members. Cruisers have plenty of places to dine thanks to eight complimentary venues – including the main dining room and Windjammer Marketplace, a globally inspired buffet – as well as nine specialty restaurants serving everything from burgers and shakes to Italian fare. The Boardwalk, one of the ship's seven neighborhoods, is a favorite spot for cruisers; it contains casual eateries, retail shops and carnival games.

Harmony of the Seas also has Splashaway Bay, the Ultimate Abyss waterslide and a trio of slides called The Perfect Storm. In the evening, don't miss a pre-dinner cocktail at the Rising Tide Bar, which offers a ride between the Central Park neighborhood and the Royal Promenade with dazzling skylight views. Sit back and sip your drink while the entire bar slowly floats between the decks.

Royal Caribbean Oasis of the Seas

Simon Brooke | Courtesy of Royal Caribbean International

Length: 1,187 feet

Width: 215 feet

Gross tons: 226,838

Maximum passengers: 6,771

Royal Caribbean's Oasis of the Seas was the largest cruise ship in the world when it was launched in 2009. The line's debut Oasis-class ship is nearly five times bigger than the Titanic by gross tonnage; it has 2,801 staterooms and carries 2,109 crew members.

Oasis of the Seas was reimagined in 2019, with many added amenities that are on newer Oasis-class ships, such as FlowRider simulators, the Perfect Storm waterslides, the Ultimate Abyss and Playmakers Sports Bar & Arcade. Across the ship's seven distinct neighborhoods, you'll also find state-of-the-art technology such as VOOM, billed as the fastest internet connection on the high seas – plus exciting live performances and theater productions, laser tag, escape rooms and more.

Royal Caribbean Allure of the Seas

Gross tons: 225,282

Maximum passengers: 6,826

Embarking for the first time in 2010, Allure of the Seas was Royal Caribbean's second Oasis-class vessel. The ship underwent a refurbishment in 2015. Allure of the Seas has 2,748 staterooms and 2,054 crew. Onboard highlights include seven neighborhoods, four pools, and several whirlpools and hot tubs, plus more than 20 dining venues and too many bars and lounges to count.

There are also plenty of entertainment options for guests of all ages, including an ice skating rink, the Sports Court, a nine-deck-high zip line, two rock climbing walls and two FlowRider simulators (a Royal Caribbean favorite). Kids will especially enjoy the interactive H2O Zone Water Park. Adults on this ship will appreciate Broadway productions like "Mamma Mia!," aerial acrobatic performances in Oceanaria (an original AquaTheater production) and '70s disco dance parties. If you find yourself on board for business reasons, rest assured that the ship's conference facilities can host as many as 1,394 guests.

Find a Royal Caribbean cruise on GoToSea.

MSC World Europa

Courtesy of MSC Cruises

Length: 1,093 feet

Width: 154 feet

Gross tons: 215,863

Maximum passengers: 6,762

MSC World Europa was one of the most anticipated new cruise ships when it launched in December 2022 as the first vessel in the line's MSC World-class fleet. It's also the first LNG-propelled ship by MSC Cruises , reaching a maximum cruising speed of 22.7 knots.

The ship's futuristic interior and exterior design features a 341-foot-long promenade. Half the promenade is covered with the Meraviglia-class LED sky screens, while the other half is open-air and offers ocean views. MSC World Europa features 2,626 staterooms and can house 2,138 crew members. As a special touch, each passenger deck is named after an international city, including London, Paris, Lisbon and Rome.

The ship is divided into distinct areas, with a quiet zen district for adults and a family zone that has bumper cars and roller skating. At the fleet's largest onboard water park, younger cruisers will find a twisty, stainless steel tunnel slide towering 11 decks high at the center of the ship. Luna Park Arena, the ship's 300-seat multifunction entertainment venue, can accommodate almost any performance or event.

When you're exhausted from all of the action, grab a bite to eat at one of 13 restaurants or a drink at a selection of bars and cafes. Then, take time to relax and unwind with a signature treatment at the Balinese-inspired MSC Aurea Spa. For an all-inclusive VIP experience during your voyage, book stateroom accommodations in the MSC Yacht Club. This exclusive part of the ship boasts premium suites, a separate pool, a private restaurant and lounge, butler service, and other amenities.

Costa Smeralda

Courtesy of Costa Cruises

Length: 1,106 feet

Width: 138 feet

Gross tons: 185,000

Maximum passengers: 6,554

Costa Smeralda was the first of the two Excellence-class vessels in the Costa Cruises fleet. The vessel debuted in 2019 as the Italian cruise line's largest ship to date. It was also the line's first vessel to use LNG power at sea and in port. The ship has 2,612 staterooms and can carry as many as 1,678 crew members.

Cruisers will never go hungry or thirsty, thanks to the 11 restaurants and snack bars plus 19 bars and lounges on Smeralda . One of the most notable dining venues on board is Archipelago, which serves innovative cuisine created by three world-renowned chefs. If you're interested in culinary pursuits, join other passengers for a cooking class at sea in the Food LAB. When it comes to entertainment, centrally located Colosseo – modeled after the piazzas across Italy – is the place to go for socializing and live performances. What's more, the ship also has 13 pools and hot tubs, an aqua park, the Beauty Spa Solemio, and the Squok Club for kids ages 3 to 11.

Costa Toscana

Costa Toscana, Costa Cruises' newest flagship and the second Excellence-class vessel in the fleet, set sail on its debut voyage in March 2022. Similar in size and passenger capacity to Costa Smeralda, Toscana is also LNG-powered. This vessel has 2,663 staterooms, and there can be up to 1,678 crew members on board.

Similar to Smeralda, Colosseo is the centerpiece of Toscana; you'll find live entertainment and themed bars in this area. There are 11 restaurants and snack bars plus 19 bars and lounges on the ship. For a refreshing aperitif with a view, head to the Aperol Spritz Bar, which features special beach cocktails. Another dining highlight is Sushino at Costa, the line's new sushi bistro. After dinner, take in unparalleled views of the sea along the Volare Skywalk, the highest point of the ship, which towers more than 200 feet above sea level.

Explore Costa Cruises deals on GoToSea.

P&O Cruises Arvia

Courtesy of P&O Cruises

Length: 1,130 feet

Maximum passengers: 5,200

Arvia joined the P&O fleet as sister ship to Iona in December 2022. It is also LNG-powered, has 2,614 cabins and carries up to 1,800 crew. The family-friendly ship offers guests many firsts, including Altitude, a new activity area with an escape room, a high-ropes experience, the Splash Valley aqua zone, the Sports Arena and much more.

Arvia has 30 bars and restaurants. New dining venues include the American-inspired 6th Street Diner and Green & Co. feat. Mizuhana, which focuses on sushi and plant-based dishes. For entertainment, plan to see the line's production of "The Official Take That Musical," an adaptation of London West End musical "The Band." Guests can also head to the dome beneath the SkyDome retractable roof for live performances, aerial displays, movies on the giant SeaScreen and DJ parties under the starry skies.

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Courtesy of AIDA Cruises

Gross tons: 184,600

Maximum passengers: 6,654

The sister ship to AIDAnova, AIDAcosma set sail in early 2022. The partly LNG-powered AIDA Cruises vessel has 2,732 staterooms and the capacity for up to around 1,500 crew members. With 17 restaurants and 23 bars and cafes, AIDAcosma offers passengers a seemingly endless number of venues to dine and imbibe. Other onboard attractions include a four-deck outdoor area, complete with an infinity pool and an expansive area for sunbathing; an indoor playground with a bouldering wall and ropes course; the Body & Soul Spa; and a 360-degree stage at the Theatrium.

P&O Cruises Iona

Length: 1,129 feet

Gross tons: 184,000

P&O Cruises' Iona, which launched in spring 2021, has the distinction of being the first LNG-powered British cruise ship. The family-friendly vessel has 2,614 cabins and carries 1,800 crew members. Iona's top features include the two-story SkyDome, a gin distillery, four pools, 10 entertainment venues, and 30 restaurants and bars offering a wide variety of food and beverage options.

With selections ranging from casual eateries to gelaterias to Indian- and British-inspired cuisine at Sindhu, you won't get bored with the restaurant choices. For an especially unique meal, dine and sip wine while watching aerial performances in the Grand Atrium at The Glass House. Or, enjoy dinner at The Limelight Club, an adults-only supper club venue featuring vocal performances and other live music. After dinner, check out the entertainment around the ship, including aerial productions in the Grand Atrium, guest and crew shows in Headliners, late night dancing in The Club House, and performances in partnership with the entertainment company Creativiva in the SkyDome.

Gross tons: 183,900

When German line AIDA Cruises' first Helios-class ship, AIDAnova, debuted in December 2018, it was the first LNG-powered cruise ship in the world. The ship is equipped with 2,626 staterooms, including the two-deck Penthouse Suite, and carries around 1,500 crew members. You won't miss this ship when it's docked in port: It features the line's signature exterior design, with bold red lips at the ship's bow and blue-and-yellow eyes on the port and starboard sides.

While on board, passengers can check out 17 restaurants, along with 23 bars and lounges; party the night away at the Beach Club; and take in live performances on the 360-degree stage in the Theatrium. When it's time to relax, head to the Body & Soul Spa, where you can book a massage, spend time in one of the hot tubs or saunas, take a dip in the private pool, and chill out on the private spa sun deck.

Carnival Jubilee

Width: 137 feet

Gross tons: 183,521

Maximum passengers: 6,631

Carnival Jubilee, as sister ship to Carnival Celebration and Carnival Mardi Gras, will offer many of the same features and amenities as its two predecessors when it launches in December 2023. The new vessel will have 2,687 staterooms, 1,735 crew and six zones of fun. Currents and The Shores are new to Jubilee . Currents is inspired by the underworld of the ocean with mermaids and sea monsters; it's designed with new bars, restaurants, music venues and high-tech spaces, including a wave-shaped LED ceiling and six LED windows that virtually take guests under the sea. The Shores is all about the outdoors, inspired by beaches and boardwalks. Cruisers can grab a slice of pizza at Coastal Slice, a hot dog at Beach Buns and a cocktail at Marina Bar.

On Jubilee, you'll also find Carnival Cruise Line favorites such as BOLT, the first and fastest roller coaster at sea, as well as Waterworks, the onboard water park with twin racing slides, three spiraling slides and more. The line's "next-level fun" ship will also include familiar eateries and lounges like Shaquille O'Neal's Big Chicken, Guy's Pig & Anchor Bar-B-Que Smokehouse, Cucina del Capitano, Fahrenheit 555 Steakhouse and more.

Carnival Celebration

Courtesy of Carnival Cruise Line

Carnival Celebration sailed its inaugural cruise in November 2022. Carnival's second-newest ship at sea is LNG-powered and the second in the line's Excel class, with 2,687 staterooms and as many as 1,735 crew. Guests will find new attractions to enjoy on the ship, such as the partnership with the Kennedy Space Center at Space Cruisers: This program is designed for children ages 2 to 11 at Camp Ocean.

Adults can check out the new bar at Latitudes, which features specialty cocktails and outdoor scenery through the virtual windows. Celebration has a variety of complimentary dining venues, including Shaq's Big Chicken, Guy's Burger Joint and Mexican favorites at BlueIguana Cantina. There is also a selection of specialty restaurants like Emeril's Bistro 1397, Rudi's Seagrill, the Steakhouse and Bonsai Teppanyaki. For action and 360-degree views of the ocean from the top of the ship, take a spin around the track on the BOLT roller coaster.

Compare Carnival Cruises on GoToSea.

MSC Euribia

Length: 1,087 feet

Width: 141 feet

Gross tons: 181,541

Maximum passengers: 6,327

MSC Euribia, the newest MSC Cruises ship, debuted in June 2023. The line's second LNG-powered vessel – and the fifth Meraviglia-class ship – has 2,419 cabins and can carry as many as 1,711 crew members. The ship's hull features Alex Flämig's artwork "#SaveTheSea" to highlight the company's dedication to preserving the marine ecosystem.

On board Euribia , guests will find five pools and 11 dining venues, offering everything from sushi and teppanyaki to Latin American street food. There are also 21 bars and lounges, the MSC Aurea Spa, the Ocean Cay Aquapark, luxury retail shopping and more. Two additional highlights are the longest – and most impressive – LED Dome at Sea, which covers the ceiling of Galleria Euribia, and the reimagined Carousel Lounge. The beautiful, updated space features floor-to-ceiling windows, outdoor terraces and cozy seating to enjoy live entertainment, including performances by one of the largest big bands at sea.

MSC Virtuosa

Maximum passengers: 6,334

This vessel launched in 2021 as a sister ship to MSC Grandiosa , the line's other Meraviglia Plus-class ship. MSC Virtuosa has 2,421 staterooms and carries around 1,704 crew members. It offers cruisers 11 dining venues plus 21 bars and lounges. At the heart of the ship, Galleria Virtuosa houses the largest shopping area on a cruise ship, with more than 12,500 square feet of retail space. In this area, you'll also find entertainment venues, restaurants and cocktail bars. And don't forget to look up: An impressive LED dome, one of the longest at sea, spans the ceiling of the promenade.

Another highlight to check out during your voyage is the MSC Starship Club, which features Rob, the first humanoid robotic bartender on a cruise ship. The multilingual expert mixologist even tells jokes and will show you a dance move or two. After all the indoor fun, head outside for a cool dip in one of MSC Virtuosa's five pools or take a ride on the slide at the Savannah Aquapark.

Book an MSC Cruise on GoToSea.

Carnival Mardi Gras

Gross tons: 180,000

Maximum passengers: 6,465

One of Carnival Cruise Line's newest ships, Mardi Gras , debuted in July 2021. Its name honors the line's first ship, the TSS Mardi Gras, which launched in 1972. The original Mardi Gras was around 27,000 gross tons and 650 feet long – in contrast, the new Carnival Mardi Gras weighs more than six times as much and is nearly twice as long. This ship also holds the title as North America's first LNG-powered ship. It has 2,641 staterooms and holds up to 1,745 crew members.

Six themed areas each offer unique dining and entertainment experiences. For New Orleans -inspired cuisine, head to the French Quarter; there, you'll find Emeril's Bistro 1396 and The Brass Magnolia, a bar reminiscent of The Big Easy's jazz culture and Garden District. Don't miss one of the ship's top onboard attractions: the BOLT roller coaster, where riders can hit speeds of nearly 40 mph at 187 feet above sea level.

Read: The Top Themed Cruises

MSC Meraviglia

Courtesy of Port Miami for MSC Cruises

Length: 1,036 feet

Gross tons: 171,598

Maximum passengers: 5,655

MSC Cruises' Meraviglia first set sail in 2017 with an impressive 2,244 staterooms and the capacity to carry 1,536 crew members. A dozen restaurants offer a wide variety of cuisines, including a Spanish tapas bar with dishes created by a Michelin-starred chef, Japanese teppanyaki, Italian fare, fresh seafood, steaks and more. There are also 20 bars, lounges and cafes serving everything from Champagne and cocktails to ice cream and crepes.

The central highlight of the ship is Galleria Meraviglia, a 315-foot promenade with eateries, boutiques and evening parties. Nightly entertainment includes live performances and shows in the Broadway Theatre and the Carousel Lounge. Kids will find plenty to do, as well: There's an Aquapark, an F1 simulator, a flight simulator, LEGO play areas, bowling and more. When it's time to wind down, book a signature treatment at the MSC Aurea Spa.

Norwegian Encore

Length: 1,094 feet

Width: 136 feet

Gross tons: 169,116

Maximum passengers: 3,998 (double occupancy)

Norwegian Encore was built in 2019 as one of Norwegian Cruise Line 's Breakaway Plus-class ships. The vessel has 2,040 staterooms and carries 1,735 crew members. There are several complimentary culinary venues on board, including three main dining rooms, The Local Bar & Grill, the Garden Café buffet, and grab-and-go options. Specialty dining restaurants offer a variety of cuisines, from seafood to steak to Japanese teppanyaki.

When it's time for cocktail hour, 14 bars and lounges serve up everything from cold brews to fine wine and whiskey. For a pre-dinner option, head up to the Observation Lounge for panoramic ocean views. Norwegian Encore is also home to several entertainment venues featuring award-winning live shows and performances.

You'll find the most fun on the ship's top decks. First, head to the Encore Speedway race track, which takes thrill-seekers on a heart-pumping ride through high-speed curves extending 13 feet off the side of the ship. Also at the top of the vessel you'll find The Haven: Norwegian's exclusive "ship within a ship" concept boasts luxurious suites, villas and penthouses with balconies. These luxe accommodations include perks like 24-hour butler service, a concierge and a private sun deck.

Find a Norwegian Cruise Line cruise on GoToSea.

Frequently Asked Questions

The largest cruise ship currently in service is Royal Caribbean's Wonder of the Seas, at more than 235,000 gross tons. Icon of the Seas will become the largest cruise ship in the world at 250,000-plus gross tons after its launch, set for January 2024.

Carnival Jubilee, scheduled to debut in December 2023, and Carnival Celebration are the line's largest ships at 183,521 gross tons.

The line's largest ship is Disney Wish at about 144,000 gross tons. The vessel is 1,119 feet in length and 128 feet wide; it has 1,254 staterooms and carries up to 4,000 passengers and 1,555 crew.

Why Trust U.S. News Travel

Gwen Pratesi has been an avid cruiser since her early 20s. She has sailed on nearly every type of cruise ship built, including the newest megaships, paddle-wheelers on the Mississippi River, and an 18-stateroom river ship on the Mekong River in Vietnam and Cambodia. She has also cruised on a traditional masted sailing ship and on a small luxury expedition vessel in Antarctica crossing the notorious Drake Passage twice. She covers the travel and culinary industries for major publications including U.S. News & World Report.

You might also be interested in:

• The Top World Cruises
• The Top Cruises on Small Ships
• The Top Gay Cruises
• Cruise Packing List Essentials
• The Top Cruise Insurance

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