Dry Tortugas National Park, located about 70 miles west of Key West, Florida, is one of the most remote and unique national parks in the United States. Comprising seven small islands and the surrounding turquoise waters of the Gulf of Mexico, the park covers over 64,000 acres, most of which are open water. It is best known for its historic 19th-century fortress, Fort Jefferson, coral reefs, and abundant marine life.

This is a definintely a one of a kind National Park.

Some of the park’s most iconic features include Fort Jefferson on Garden Key, one of the largest brick structures in the Americas, and the clear, shallow waters perfect for snorkeling among corals and shipwrecks. The park’s isolation adds to its charm, offering a peaceful and awe-inspiring escape far from the mainland.

Access to Dry Tortugas is primarily by seaplane or ferry (there is one a day), and facilities are minimal, making it feel more like a true wilderness destination than a typical national park. Garden Key is the main island for visitors, with access to the fort, beaches, and a primitive campground. Nearby Loggerhead Key and Bush Key offer additional opportunities for birding and exploring, though access may be seasonally restricted for wildlife protection.

Due to its remote nature and weather-dependent access, visitors should plan ahead and check conditions before visiting.

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Highlights of Dry Tortugas National Park

• Fort Jefferson: The massive 19th-century coastal fortress is the centerpiece of the park. You can walk the moat, explore historic corridors, and learn about its role in U.S. military history.
• Snorkeling Around the Moat Wall: The shallow waters around Fort Jefferson are perfect for snorkeling, offering views of coral formations, tropical fish, and sea turtles.
• Garden Key: The main island and location of Fort Jefferson, Garden Key also features a small beach, visitor info, and camping sites.
• Loggerhead Key: The largest island in the park, home to the Loggerhead Lighthouse. Though access is limited, it’s a great destination for advanced paddlers and snorkelers.
• Bush Key (seasonal access): A nearby island that serves as a vital nesting site for sooty terns and brown noddies—open to visitors when not in nesting season.
• Coral and Seagrass Beds: The park protects some of the healthiest coral reefs and seagrass ecosystems in the Florida Keys, accessible by snorkeling or diving.
• Birdwatching: A major hotspot for migratory and nesting seabirds, particularly during spring migration and nesting season.
• Stargazing: With no light pollution, Dry Tortugas offers exceptional stargazing opportunities for overnight campers.
• Ferry or Seaplane Ride: The journey to the park itself—whether by ferry or seaplane—is part of the adventure, offering scenic views of the Florida Keys and Gulf of Mexico.
• Camping on Garden Key: For those seeking a remote and unforgettable experience, camping under the stars near Fort Jefferson is a rare and rewarding opportunity.

Travel Guides to Dry Tortugas National Park

Things to Know About Visiting Dry Tortugas National Park

Best Time of Year to Visit Dry Tortugas National Park

The best time to visit Dry Tortugas National Park is during the dry season, which runs from November through April. During these months, the weather is typically sunny, warm, and less humid, with calmer seas—ideal for snorkeling, ferry rides, and exploring Fort Jefferson. This period also coincides with bird migration and nesting seasons, making it especially appealing for birdwatchers.

The summer months (May–October) bring hotter temperatures, higher humidity, and a greater chance of storms or rough seas. However, the water is often clearer for snorkeling, and there are typically fewer crowds.

How to Get to Dry Tortugas National Park

Dry Tortugas is located about 70 miles west of Key West, Florida, and is only accessible by boat or seaplane.

• By Ferry: The Yankee Freedom III is the official ferry service, offering daily trips from Key West to Garden Key (home of Fort Jefferson). The trip takes about 2 hours each way, and includes breakfast, lunch, snorkeling gear, and park entrance.
• By Seaplane: For a quicker and more scenic route, Key West Seaplane Adventures offers half-day and full-day trips with stunning aerial views of the Florida Keys and Gulf of Mexico. The flight takes around 40 minutes.
• Private Boat: Experienced mariners can reach the park by private vessel, though permits and thorough planning are required due to the remote location and lack of services.

Regardless of your transportation method, reservations are highly recommended (9-12 months in advance) especially during peak season.

How Much Time do you Need in Dry Tortugas

Most people visit Dry Tortugas for the Day. The ferry arrive and you have about 4 hours on the island. This gives you time to do the tour, snorkel, go birding, and walk around. It is possible to stay overnight for a one of a kind experience.

Need to Know About Dry Tortugas National Park

Timed-Entry System: There is no timed-entry system, but access to Dry Tortugas is limited by transportation availability. The ferry, seaplane, and private boats are the only ways to reach the park, so reservations are essential, especially during peak season (December to April). Plan well in advance to secure your spot 9-12 months in advance.

The only ferry that operates is the Yankee Freedom.

Permits and Fees: There is a park entrance fee, which is often included in ferry or seaplane tickets. Camping at Garden Key requires a separate permit, and sites are first-come, first-served. Those arriving by private vessel may need additional permits—check current regulations before your trip.

Leave No Trace: Help protect the fragile island ecosystems and coral reefs by following Leave No Trace principles. Pack out all waste (including camping trash), avoid damaging corals when snorkeling, and respect historic sites like Fort Jefferson to ensure the park remains pristine for future visitors.

Lodging near Dry Tortugas National Park

The ferry leaves Key West at 8 am so the best place to stay is right in Key West. There are a lot of hotels (we used booking.com to book a hotel).

Looking for more guides on Visiting US National Parks? Make sure to check out:

• The Ultimate Guide to Planning a National Parks Trip
• All our National Park Guides