travelling to usa 02

An official website of the United States government

Here’s how you know

Official websites use .gov A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS A lock ( Lock A locked padlock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

• Fact Sheets

Frequently Asked Questions: Guidance for Travelers to Enter the U.S.

Updated Date: April 21, 2022

Since January 22, 2022, DHS has required non-U.S. individuals seeking to enter the United States via land ports of entry and ferry terminals at the U.S.-Mexico and U.S.-Canada borders to be fully vaccinated for COVID-19 and provide proof of vaccination upon request.  On April 21, 2022, DHS announced that it would extend these requirements. In determining whether and when to rescind this order, DHS anticipates that it will take account of whether the vaccination requirement for non-U.S. air travelers remains in place.

These requirements apply to non-U.S. individuals who are traveling for essential or non-essential reasons. They do not apply to U.S. citizens, Lawful Permanent Residents, or U.S. nationals.

Effective November 8, 2021, new air travel requirements applied to many noncitizens who are visiting the United States temporarily. These travelers are also required to show proof of COVID-19 vaccination. All air travelers, including U.S. persons, must test negative for COVID-19 prior to departure. Limited exceptions apply. See  CDC guidance  for more details regarding air travel requirements.

Below is more information about what to know before you go, and answers to Frequently Asked Questions about cross-border travel.

Entering the U.S. Through a Land Port of Entry or Ferry Terminal

Q. what are the requirements for travelers entering the united states through land poes.

A:  Before embarking on a trip to the United States, non-U.S. travelers should be prepared for the following:

• Possess proof of an approved COVID-19 vaccination as outlined on the  CDC  website.
• During border inspection, verbally attest to their COVID-19 vaccination status. 
• Bring a  Western Hemisphere Travel Initiative  compliant border crossing document, such as a valid passport (and visa if required), Trusted Traveler Program card, a Department of State-issued Border Crossing Card, Enhanced Driver’s License or Enhanced Tribal Card when entering the country. Travelers (including U.S. citizens) should be prepared to present the WHTI-compliant document and any other documents requested by the CBP officer.

 Q. What are the requirements to enter the United States for children under the age of 18 who can't be vaccinated?

A:  Children under 18 years of age are excepted from the vaccination requirement at land and ferry POEs.

Q: Which vaccines/combination of vaccines will be accepted?

A:  Per CDC guidelines, all Food and Drug Administration (FDA) approved and authorized vaccines, as well as all vaccines that have an Emergency Use Listing (EUL) from the World Health Organization (WHO), will be accepted.

Accepted Vaccines:

• More details are available in CDC guidance  here .
• 2 weeks (14 days) after your dose of an accepted single-dose COVID-19 vaccine;
• 2 weeks (14 days) after your second dose of an accepted 2-dose series;
• 2 weeks (14 days) after you received the full series of an accepted COVID-19 vaccine (not placebo) in a clinical trial;
• 2 weeks (14 days) after you received 2 doses of any “mix-and-match” combination of accepted COVID-19 vaccines administered at least 17 days apart.

Q. Is the United States requiring travelers to have a booster dose to be considered fully vaccinated for border entry purposes?

A:  No. The CDC guidance for “full vaccination” can be found here.

Q: Do U.S. citizens or lawful permanent residents need proof of vaccination to return to the United States via land POEs and ferry terminals?

A:  No. Vaccination requirements do not apply to U.S. citizens, U.S. nationals, or Lawful Permanent Residents (LPRs). Travelers that exhibit signs or symptoms of illness will be referred to CDC for additional medical evaluation.

Q: Is pre- or at-arrival COVID testing required to enter the United States via land POEs or ferry terminals?

A: No, there is no COVID testing requirement to enter the United States via land POE or ferry terminals. In this respect, the requirement for entering by a land POE or ferry terminal differs from arrival via air, where there is a requirement to have a negative test result before departure.

Processing Changes Announced on January 22, 2022 

Q: new changes were recently announced. what changed on january 22.

A:  Since January 22, 2022, non-citizens who are not U.S. nationals or Lawful Permanent Residents have been required to be vaccinated against COVID-19 to enter the United States at land ports of entry and ferry terminals, whether for essential or nonessential purposes. Previously, DHS required that non-U.S. persons be vaccinated against COVID-19 to enter the United States for nonessential purposes.  Effective January 22, all non-U.S. individuals, to include essential travelers, must be prepared to attest to vaccination status and present proof of vaccination to a CBP officer upon request. DHS announced an extension of this policy on April 21, 2022.

Q: Who is affected by the changes announced on January 22?

A: This requirement does not apply to U.S. citizens, U.S. nationals, or U.S. Lawful Permanent Residents. It applies to other noncitizens, such as a citizen of Mexico, Canada, or any other country seeking to enter the United States through a land port of entry or ferry terminal.

Q: Do U.S. citizens need proof of vaccination to return to the United States via land port of entry or ferry terminals?

A: Vaccination requirements do not apply to U.S. Citizens, U.S. nationals or U.S. Lawful Permanent Residents. Travelers that exhibit signs or symptoms of illness will be referred to CDC for additional medical evaluation. 

Q: What is essential travel?

A:  Under the prior policy, there was an exception from temporary travel restrictions for “essential travel.” Essential travel included travel to attend educational institutions, travel to work in the United States, travel for emergency response and public health purposes, and travel for lawful cross-border trade (e.g., commercial truckers). Under current policy, there is no exception for essential travel.

Q: Will there be any exemptions? 

A: While most non-U.S. individuals seeking to enter the United States will need to be vaccinated, there is a narrow list of exemptions consistent with the Centers for Disease Control and Prevention (CDC) Order in the air travel context.

• Certain categories of individuals on diplomatic or official foreign government travel as specified in the CDC Order
• Children under 18 years of age;
• Certain participants in certain COVID-19 vaccine trials as specified in the CDC Order;   
• Individuals with medical contraindications to receiving a COVID-19 vaccine as specified in the CDC Order;
• Individuals issued a humanitarian or emergency exception by the Secretary of Homeland Security;
• Individuals with valid nonimmigrant visas (excluding B-1 [business] or B-2 [tourism] visas) who are citizens of a country with limited COVID-19 vaccine availability, as specified in the CDC Order
• Members of the U.S. Armed Forces or their spouses or children (under 18 years of age) as specified in the CDC Order; and
• Individuals whose entry would be in the U.S. national interest, as determined by the Secretary of Homeland Security.

Q: What documentation will be required to show vaccination status?

A:  Non-U.S. individuals are required to be prepared to attest to vaccination status and present proof of vaccination to a CBP officer upon request regardless of the purpose of travel.

The current documentation requirement remains the same and is available on the CDC website . Documentation requirements for entry at land ports of entry and ferry terminals mirror those for entry by air.

Q: What happens if someone doesn’t have proof of vaccine status?

A: If non-U.S. individuals cannot present proof of vaccination upon request, they will not be admitted into the United States and will either be subject to removal or be allowed to withdraw their application for entry.

Q: Will incoming travelers be required to present COVID-19 test results?

A: There is no COVID-19 testing requirement for travelers at land border ports of entry, including ferry terminals.

Q: What does this mean for those who can't be vaccinated, either due to age or other health considerations? 

A: See CDC guidance for additional information on this topic. Note that the vaccine requirement does not apply to children under 18 years of age.

Q: Does this requirement apply to amateur and professional athletes?

A: Yes, unless they qualify for one of the narrow CDC exemptions.

Q: Are commercial truckers required to be vaccinated?

A: Yes, unless they qualify for one of the narrow CDC exemptions. These requirements also apply to bus drivers as well as rail and ferry operators.

Q. Do you expect border wait times to increase?

A:  As travelers navigate these new travel requirements, wait times may increase. Travelers should account for the possibility of longer than normal wait times and lines at U.S. land border crossings when planning their trip and are kindly encouraged to exercise patience.

To help reduce wait times and long lines, travelers can take advantage of innovative technology, such as facial biometrics and the CBP OneTM mobile application, which serves as a single portal for individuals to access CBP mobile applications and services.

Q: How is Customs and Border Protection staffing the ports of entry? 

A: CBP’s current staffing levels at ports of entry throughout the United States are commensurate with pre-pandemic levels. CBP has continued to hire and train new employees throughout the pandemic. CBP expects some travelers to be non-compliant with the proof of vaccination requirements, which may at times lead to an increase in border wait times. Although trade and travel facilitation remain a priority, we cannot compromise national security, which is our primary mission. CBP Office of Field Operations will continue to dedicate its finite resources to the processing of arriving traffic with emphasis on trade facilitation to ensure economic recovery.

Q: What happens if a vaccinated individual is traveling with an unvaccinated individual?  

A:  The unvaccinated individual (if 18 or over) would not be eligible for admission.

Q: If I am traveling for an essential reason but am not vaccinated can I still enter?

A:  No, if you are a non-U.S. individual. The policy announced on January 22, 2022 applies to both essential and non-essential travel by non-U.S. individual travelers. Since January 22, DHS has required that all inbound non-U.S. individuals crossing U.S. land or ferry POEs – whether for essential or non-essential reasons – be fully vaccinated for COVID-19 and provide related proof of vaccination upon request.

Q: Are sea crew members on vessels required to have a COVID vaccine to disembark?

A:  Sea crew members traveling pursuant to a C-1 or D nonimmigrant visa are not excepted from COVID-19 vaccine requirements at the land border. This is a difference from the international air transportation context.

Entering the U.S. via Air Travel

Q: what are the covid vaccination requirements for air passengers to the united states  .

A:  According to CDC requirements [www.cdc.gov/coronavirus/2019-ncov/travelers/noncitizens-US-air-travel.html | Link no longer valid], most noncitizens who are visiting the United States temporarily must be fully vaccinated prior to boarding a flight to the United States. These travelers are required to show proof of vaccination. A list of covered individuals is available on the CDC website.  

Q: What are the COVID testing requirements for air passengers to the United States?  

A:  Effective Sunday, June 12 at 12:01 a.m. ET, CDC will no longer require pre-departure COVID-19 testing for U.S.-bound air travelers.

• Border Security
• Transportation Security
• Airport Security
• Coronavirus (COVID-19)
• Customs and Border Protection (CBP)
• Transportation Security Administration (TSA)

An official website of the United States government

Here’s how you know

Official websites use .gov A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS A lock ( Lock A locked padlock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

• Traveler Entry Forms

CBP Traveler Entry Forms

Whether you are a visitor to the United States or a U.S. citizen arriving in the United States, you must complete one or more entry forms.

You must complete the CBP Declaration Form 6059B . CBP Declaration Form 6059B provides us with basic information about who you are and what you are bringing into the United States, such as agricultural and wildlife products and whether or not you have visited a farm prior to traveling to the United States. If you are traveling with other immediate family members, then you can complete one form for your entire family.

Some travelers (such as refugees, asylees or individuals with parole documents) will need to complete CBP Form I-94 Arrival/Departure Record .

If you have questions about your form, please don't hesitate to ask a CBP officer for help.

Sample Customs Declaration Form 6059B (English)

We’re sorry, this site is currently experiencing technical difficulties. Please try again in a few moments. Exception: request blocked

Cookies on GOV.UK

We use some essential cookies to make this website work.

We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.

We also use cookies set by other sites to help us deliver content from their services.

You have accepted additional cookies. You can change your cookie settings at any time.

You have rejected additional cookies. You can change your cookie settings at any time.

Register to vote Register by 18 June to vote in the General Election on 4 July.

• Passports, travel and living abroad
• Travel abroad
• Foreign travel advice

Warnings and insurance

This travel advice also covers American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and United States Virgin Islands.

Before you travel

No travel can be guaranteed safe. Read all the advice in this guide and any specific travel advice that applies to you: 

• women travellers
• disabled travellers
• LGBT+ travellers
• solo and independent travel
• volunteering and adventure travel

Travel insurance

If you choose to travel, research your destinations and  get appropriate travel insurance . Insurance should cover your itinerary, planned activities and expenses in an emergency.

About FCDO travel advice

The Foreign, Commonwealth & Development Office ( FCDO ) provides advice about risks of travel to help British nationals make informed decisions. Find out  more about  FCDO  travel advice .

Follow and contact  FCDO  travel on  Twitter ,  Facebook  and  Instagram . You can also sign up to  get email notifications  when this advice is updated.

Related content

Is this page useful.

• Yes this page is useful
• No this page is not useful

Help us improve GOV.UK

Don’t include personal or financial information like your National Insurance number or credit card details.

To help us improve GOV.UK, we’d like to know more about your visit today. Please fill in this survey (opens in a new tab) .

Security Alert May 17, 2024

Worldwide caution, update may 10, 2024, information for u.s. citizens in the middle east.

• Travel Advisories |
• Contact Us |
• MyTravelGov |

Find U.S. Embassies & Consulates

Travel.state.gov, congressional liaison, special issuance agency, u.s. passports, international travel, intercountry adoption, international parental child abduction, records and authentications, popular links, travel advisories, mytravelgov, stay connected, legal resources, legal information, info for u.s. law enforcement, replace or certify documents.

Tourism & Visit

Study & Exchange

Other Visa Categories

U.S. Visa: Reciprocity and Civil Documents by Country

Share this page:

Student Visa

Exchange Visitor Visa

Waiver of the Exchange Visitor Two-Year Home-Country Physical Presence Requirement

After their exchange, some J-1 visa holders must spend two years in their home country.  This requirement is part of U.S. law, in the Immigration and Nationality Act, Section 212(e). If you cannot return home for two years, you must apply for a waiver.  Before you can change status or receive a visa in certain categories, the Department of Homeland Security must approve your waiver.

Eligibility for a Waiver

Review the Eligibility Information about J-1 exchange visitors who are subject to the two-year home-country physical presence requirement and determine whether a waiver is available to you.

Instructions and the J-1 Waiver Recommendation Application

Select Instructions and Online DS-3035 to learn more and access the online form.  Complete this form to request a waiver recommendation from the Department of State’s Waiver Review Division.

Before you apply - More information

• J-1 Waiver Frequently Asked Questions (FAQs)
• Advisory Opinions
• Processing Times
• Processing Fee
• Exchange Visitors Skills List - 2009
• State Public Health Departments
• Interested U.S. Federal Government Agencies
• Exchange Visitor Visas Information

After you apply – Status Check and Contact Updates

Select J Visa Waiver Online to change your address or contact information, and to check the status of your waiver.

More Information

A-Z Index Latest News What is a U.S. Visa? Find a U.S. Embassy or Consulate Exchange Visitor Visa

External Link

You are about to leave travel.state.gov for an external website that is not maintained by the U.S. Department of State.

Links to external websites are provided as a convenience and should not be construed as an endorsement by the U.S. Department of State of the views or products contained therein. If you wish to remain on travel.state.gov, click the "cancel" message.

You are about to visit:

U.S. State Department issues worldwide travel alert

• Published: May. 22, 2024, 2:05 p.m.
• Chris Mautner | [email protected]

The U.S. State Department issued a worldwide cautionary alert late last week for any Americans traveling outside of the country.

In the alert, issued May 17, the department warned U.S. citizens traveling overseas to “exercise increased caution,” due to the possibility of “terrorist attacks, demonstrations, or violent actions against U.S. citizens and interests.”

In particular, the department said it “is aware of the increased potential for foreign terrorist organization-inspired violence against LGBTQI+ persons and events and advises U.S. citizens overseas to exercise increased caution.”

Travelers in foreign countries are advised to stay alert in tourist-heavy locations, “including Pride celebrations and venues frequented by LGBTQI+ persons.”

The State Department also encourages travelers to enroll in its Smart Traveler Enrollment program, which gives out travel information and alerts, and can make it easier for you to be located in the event of an emergency.

It also recommends following the department on Facebook and X for the latest updates.

Stories by Chris Mautner

• Bassist for iconic heavy metal band open to playing one final show
• Iconic classic rock band in talks to sell catalog for $1 billion
• Pa. construction worker dies in 9-story fall from scaffolding
• State department issues new travel warning for Caribbean country

If you purchase a product or register for an account through a link on our site, we may receive compensation. By using this site, you consent to our User Agreement and agree that your clicks, interactions, and personal information may be collected, recorded, and/or stored by us and social media and other third-party partners in accordance with our Privacy Policy.

AAA forecasts nearly 44M travelers for Memorial Day weekend: See best times to travel

Memorial Day weekend marks the unofficial start of summer, which means people will be flooding highways and airports this weekend looking to get away for some rest and relaxation.

The American Automobile Association is projecting nearly 44 million travelers will head 50 miles or more from home over the Memorial Day holiday travel period, which is defined by the organization as the five-day period from Thursday, May 23 to Monday, May 27.

"We haven't seen Memorial Day weekend travel numbers like these in almost 20 years," said Paula Twidale, senior vice president of AAA Travel, in a news release. "We're projecting an additional one million travelers this holiday weekend compared to 2019, which not only means we're exceeding pre-pandemic levels but also signals a very busy summer travel season ahead."

The organization projects over 38 million people will travel by car over Memorial Day weekend, over 3.5 million will travel by air and nearly 2 million will travel by other modes of transportation, including buses, cruises and trains.

The 38 million drivers is the highest number for Memorial Day since AAA began tracking data in 2000 and is up 4% compared to last year. The 3.5 million air travelers is an increase of nearly 5% over last year and, according to AAA, this will be the most crowded Memorial Day weekend at airports since 2005.

Learn more: Best travel insurance

When is Memorial Day?: Here's when the holiday falls and what to know about its history.

Best, worst times to travel for Memorial Day weekend

Drivers leaving Thursday or Friday should hit the road early to avoid mixing with commuters, AAA said, citing data from transportation data and insights provider INRIX. Drivers going back home Sunday or Monday should avoid the afternoon hours when return trips will peak.

“Travel times are expected to be up to 90% longer than normal. Travelers should stay up to date on traffic apps, 511 services, and local news stations to avoid sitting in traffic longer than necessary,” said Bob Pishue, transportation analyst at INRIX, in the news release.

Here's a breakdown of the best and worst times to travel by car depending on which day you are traveling:

Thursday, May 23

• Best travel time: Before 11 a.m. and after 7 p.m.
• Worst travel time: Between noon and 6 p.m.

Friday, May 24

• Best travel time: Before 11 a.m. and after 8 p.m.
• Worst travel time: Between noon and 7 p.m.

Saturday, May 25

• Best travel time: Before 1 p.m. and after 6 p.m.
• Worst travel time: Between 2 p.m. and 5 p.m.

Sunday, May 26

• Best travel time: Before 1 p.m.
• Worst travel time: Between 3 p.m. and 7 p.m.

Monday, May 27

• Best travel time: After 7 p.m.

Gas prices continue to decrease heading into Memorial Day weekend

According to AAA, the national average for a gallon of gasoline has fallen four cents since last week, to $3.60. The primary reasons are weak domestic demand and oil costs below $80 a barrel, according to the organization.

“Barring some unforeseen event, this pokey drop in pump prices is not likely to change anytime soon,” said Andrew Gross, AAA spokesperson, in a news release. “There are seven states with county gas averages at less than $3 a gallon. This trend will likely accelerate as more gas outlets east of the Rockies drop their prices.”

This Memorial Day weekend, drivers can expect similar gas prices as last year when the national average was about $3.57.

"Pump prices rose this spring but have held somewhat steady in recent weeks," AAA said in the news release, while also noting that prices may creep higher as the summer driving season gets underway.

The wildcard remains the cost of oil, according to the organization, and unlike last year, there are now two wars – in the Middle East and Ukraine – that could roil the oil market.

Gabe Hauari is a national trending news reporter at USA TODAY. You can follow him on X  @GabeHauari  or email him at [email protected].

• Share full article

Advertisement

Supported by

6 Beaches for Budding Swimmers, Surfers and Castle Builders

For families with children, we found half a dozen beaches in the United States and Mexico, each tailored to a particular summer activity.

By Freda Moon

A family beach vacation is an American classic. But depending on their children’s ages and inclinations, some families may be drawn to different kinds of shorelines: those featuring clear, calm water for snorkeling and learning to swim; or, for shell collectors and young naturalists, sandy stretches carpeted with seashells or bordered by tide pools. For castle builders, fine sand is a must, while would-be surfers need tidy waves, ready to ride. Here are six great beaches in the United States and Baja California for family-favorite summer activities.

For castle builders: Mission Beach , San Diego

San Diego’s temperate climate allows for barefoot beach days year-round. For those who’d rather build with sand than lie in it, Mission Beach has another advantage: San Diego Sand Castles and the sand sculptor JT Estrela. Mr. Estrela, a former math teacher, offers lessons in the art of sand castle construction on this family-friendly Southern California beach, where the sand is perfect for castle building: The grains are fine but not too silty, clean below the tide line, free of shells and rocks, and pack hard.

In his two-to-three-hour sessions (starting at $160 for two people, $20 for each additional person), Mr. Estrela works with families to build elaborate five-foot-tall castles. The goal is for participants to “feel like this insider of arcane knowledge,” he said.

While the best sand in the San Diego area is at the offshore city of Coronado in San Diego Bay, Mr. Estrela prefers working with families at Mission Beach. Known for its boardwalk amusement park, Belmont Park ; historic beachfront swimming pool, the Plunge ; and excellent playgrounds, it’s particularly fun for kids. The smell of cotton candy and hot dogs hangs in the air, mingling with shrieks from the Giant Dipper, Belmont’s 1925 wooden roller coaster, squawking sea gulls and salt spray. Its biggest downside is its popularity, which means parking can be a challenge.

For new swimmers: Onekahakaha Beach Park , Hilo, Hawaii

In an archipelago known for spectacular beaches, Onekahakaha Beach Park , on the rugged, volcanic coast of the Big Island, may seem a counterintuitive choice. At Onekahakaha, with its two large, sandy-bottomed ocean pools enclosed by lava rock walls and backed by palm trees and an expansive grassy lawn, the sand is mostly below the surface.

Separated from the Pacific Ocean’s notoriously powerful waves and rip currents, the seawater within the pools is warm and placid, protected and shallow, which makes it excellent for little kids learning to swim, as well as for older kids to snorkel. It’s also home to nonthreatening marine life (no sharks here), including green sea turtles.

Though the water is only about waist-deep on an adult, there are lifeguards, adding to Onekahakaha’s reputation for safety. And without a wide swath of sand between the pools and the shoreline path, the water is accessible for strollers and wheelchairs. There’s also a swing set, picnic tables and proximity to the lush Hilo area.

As long as you’re on the Big Island, the site of several active volcanoes, visit the thermal pools alongside some of its beaches, including Pohoiki Black Sand Beach at Isaac Hale Beach Park , 40 miles south of Onekahakaha. The ocean there may be a bit rough for young swimmers, but it’s a great place to show children a fresh lava flow.

For would-be surfers: Wrightsville Beach , N.C.

Wrightsville Beach is considered by many surf historians to be the home of East Coast surfing and one of the first places outside Polynesia and the Pacific Rim for the sport to catch on .

It also has some of the best beginner’s breaks in the United States , said Sean Griffin, 37, a surfing instructor and the father of a 5-year-old, who started riding the local break when he was 8.

He points out that Wrightsville is the only surfing beach in the state that has clear, blue water. Being able to see one’s hands and feet and the sandy bottom “makes anyone feel more comfortable in the ocean,” he said.

At Surf With Sean , Mr. Griffin offers private 90-minute lessons ($95 to $120) to surfers as young as 3 and into their 80s, as well as surf camps for kids ($425 per week). “There’s no reason they shouldn’t be able to learn or give it a shot,” said Mr. Griffin, who provides all gear in all sizes, including adaptive equipment.

There’s more to the area’s kid appeal than its waves. Mr. Griffin points to Johnnie Mercers Fishing Pier , at the center of the beach, where his son “loves seeing all the salty fisherman pulling in fish,” and the big, modern playground at Wrightsville Beach Park .

For tide pool explorers: Carkeek Park , Seattle

Naomi Tomky — a lifelong Seattleite, author of “ The Pacific Northwest Seafood Cookbook ” and mother of two daughters, 6 and 8 — recommends Carkeek Park in Seattle for an immersive experience in Puget Sound marine life. At low tide, Ms. Tomky said, the narrow beach “just goes out for ages,” exposing tide pools filled with starfish, sea snails, anemones and “many, many crabs, from the size of your fingernail to the size of your hand.”

Unlike tide-pooling elsewhere on the West Coast, where the powerful Pacific Ocean requires caution because of dangerous sneaker waves , Puget Sound is rich with life but calm enough for Ms. Tomky to let her daughters explore on their own.

Just 30 minutes from downtown Seattle, Carkeek is part of the Seattle Aquarium’s Beach Naturalist Program , which sends naturalists to various shorelines around the area.

Along with the below-the-tide-line intrigue, Carkeek is also known for an annual spectacle: spawning salmon. In the fall, it’s possible to stand over the park’s Piper’s Creek and watch the fish — a sacred Indigenous symbol of the Pacific Northwest — on the run.

“It’s one of the coolest things you can see,” said Ms. Tomky, “to understand how these fish share the city with us as they swim back into their former home.”

For shell hunters: Tigertail Beach , Marco Island, Fla.

Sanibel Island, a barrier island just off Fort Myers, Fla., is one of the most famous shelling destinations on the planet. That popularity comes with a downside: It’s often picked over by enthusiasts who hit the shoreline at dawn. The island is also still recovering from Hurricane Ian, which badly damaged its infrastructure in 2022.

As an alternative, the shelling guide Evan Kuperman (a.k.a. Captain Evan) recommends Tigertail Beach on Marco Island, about an hour south.

Mr. Kuperman, a Florida master naturalist , operates Sand Dollar Shelling Tours . His tours ($125 per adult, $90 per child, and families of up to six people for $650) take guests by boat to places like the Ten Thousand Islands , a mangrove mud flat habitat and National Wildlife Refuge.

For visitors unable to join one of his trips, Mr. Kuperman said that Tigertail, a publicly accessible beach ($8 parking fee), offers exceptional shelling.

Marco Island is more built up than Sanibel, but Tigertail, at the island’s north end, is a county-owned park with a lagoon and a position facing the Gulf of Mexico that lends itself to accumulating seashells, including rare and striking ones, like the spiny ornamented lace murex and reddish brown banded tulip .

But everyone is hoping for a junonia, or Juno’s volute, a sea snail that has to travel far in churning waters to reach the beach intact. “You don’t find it,” said Mr. Kuperman, “it finds you.”

For young snorkelers: Playa el Chileno , Los Cabos, Mexico

About halfway between bustling Cabo San Lucas and San José del Cabo, Playa el Chileno is no longer an undeveloped local secret. Now backed by the sprawling Auberge resort Chileno Bay Resort & Residences , the beach remains public and comparatively tranquil. Awarded the Blue Flag certification for meeting stringent environmental standards, Chileno is exceptionally well maintained.

While catamaran snorkeling tours come and go from Chileno Bay, it’s also possible to reach the reef from the shore, which makes it good for inexperienced snorkelers who might find it intimidating to leap into deep water without easing their way in. High Tide Sea Expeditions offers snorkeling excursions via kayak that start at nearby Playa Santa Maria, hug the coast and arrive at Chileno by water. For younger kids and anyone who prefers more time in the water, there’s a guided two-hour tour that visits both beaches by car ($95 to $130 per person, including equipment).

Among the roughly 50 species of fish that snorkelers might encounter along Chileno’s rocky outcroppings and coral reef, there are large tuna, sea turtles, puffer fish, Panamic green moray eels, Cortez angelfish and blacknosed butterflyfish — among many other colorful creatures. The coral here is less vibrant than some places, but the number and variety of fish are thrilling.

Freda Moon, a frequent contributor to the Travel section, lives on a boat in San Francisco Bay with her husband and two kids. Her upcoming National Geographic book with the coauthor Ashley Harrell, “100 Beaches of a Lifetime,” will be published next year.

Follow New York Times Travel on Instagram and sign up for our weekly Travel Dispatch newsletter to get expert tips on traveling smarter and inspiration for your next vacation. Dreaming up a future getaway or just armchair traveling? Check out our 52 Places to Go in 2024 .

Get Out on the Water This Summer

3 6 Hours in Traverse City, Mich.:  Explore the laid-back city loved for its annual cherry festival, unspoiled lake vistas and access to epic dunes .

6 Great Beaches for Families:  For families with children, we found half a dozen beaches in the United States and Mexico , each tailored to a particular summer activity.

Surfing in Texas: A wave pool in Waco offers consistent conditions, affordable prices and a friendly vibe for beginner surfers .

Hidden Island Treasures: Being far from everywhere is the point in the Magdalens, a colorful and tranquil Quebec island chain  north of Prince Edward Island.

A Famous Massachusetts Inn: A writer returns to a classic Nantucket hotel, where he worked 50 years ago, to ponder how he, the island, and the newly refurbished inn have changed .

5 Waterfront Hotels : Whether it’s by a river, lake or ocean, or in a castle, cottage or on the site of a former torpedo factory, here are places to stay where the water is never far away .

An official website of the United States government

Here’s how you know

Official websites use .gov A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS A lock ( Lock Locked padlock icon ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. citizens traveling abroad

Learn about visa requirements, Trusted Traveler Programs like Global Entry, emergencies, and more.

International driver’s license for U.S. citizens

If you are a U.S. citizen planning to drive while traveling abroad, find out if you need an International Driving Permit (IDP) for the country you are visiting.

Do you need a passport to travel to or from U.S. territories or Freely Associated States?

Whether you need a passport as a U.S. citizen to travel to or from a U.S. territory or Freely Associated State depends on your destination.

COVID-19 international travel advisories

If you plan to visit the U.S., you do not need to be tested or vaccinated for COVID-19.

Visa requirements for U.S. citizens traveling abroad

If you are a U.S. citizen planning to travel outside the U.S., you may need a visa to enter a foreign country. Learn how to find your destination's visa requirements.

Save time getting through airport security with Trusted Traveler Programs

Trusted Traveler Programs, like TSA Precheck and Global Entry, can help reduce airport security and border crossing wait times. Learn about applying for and managing memberships.

Emergency help for Americans abroad

Find out what to do in an emergency in another country, including assistance, money and more.

Authenticate an official document for use outside the U.S.

Apostilles and authentication certificates show U.S. documents are genuine. Learn when to use each.