Dry Tortugas National Park
Dry Tortugas National Park is one of the most remote national parks in the United States, located about 70 miles west of Key West in the Gulf of Mexico. The park is known for its crystal-clear waters, vibrant coral reefs, abundant marine life, and the massive historic Fort Jefferson. Accessible only by boat or seaplane, Dry Tortugas offers visitors incredible snorkeling, birdwatching, history, and some of the most pristine tropical scenery in the country.
Park Data & Statistics
- State: Florida
- Established: October 26, 1992
- Park Size: ~100 square miles
- Water Coverage: ~99% water
- Number of Islands: 7 small islands
- Nearest City: Key West, Florida
- Historic Landmark: Fort Jefferson
Best Time to Visit
Winter (December–April)
Pleasant weather and calmer seas.
Spring
Excellent birdwatching during migration.
Summer
Warm water and great snorkeling conditions.
Fall
Hurricane season but fewer crowds.
Best Photography Locations
- Fort Jefferson aerial views
- Garden Key beaches
- Loggerhead Key lighthouse
- Snorkeling reef areas
- Sunset over the Gulf of Mexico
Camping & Lodging Options
Garden Key Campground
The only campground in the park featuring primitive camping near Fort Jefferson.
Visitors must bring all supplies including food and water.
There are no hotels inside the park.
Indigenous / Cultural Significance
Before European exploration, the waters surrounding the islands were used by Indigenous peoples including the Calusa People, who traveled through the region for fishing and trade.
Entrance Fees & Pass Information
- Entrance fee: Yes
- Children under 16: Free
The America the Beautiful Annual Pass covers entry to all U.S. national parks for one year.
Hidden Gems Most Visitors Miss
- Loggerhead Key remote lighthouse
- Secluded snorkeling reefs
- Historic prison cells inside Fort Jefferson
- Remote bird nesting islands
- Underwater shipwreck sites
Additional Resources (1)
• Official Dry Tortugas National Park Website (National Park Service) – Official park information, alerts, and visitor planning resources.
• Dry Tortugas National Park Maps – Download official park maps including islands and snorkeling areas.
• Dry Tortugas Snorkeling Guide – Information about coral reefs and snorkeling safety.
• Dry Tortugas Current Conditions & Alerts – Weather updates, closures, and park alerts.
• Dry Tortugas Camping Information – Details about Garden Key campground and permits.
Popular Hiking Trails
- Fort Jefferson Moat Walk
0.5 miles – Walk around the historic fort walls. - Garden Key Loop Trail
Short scenic walk around Garden Key island. - Loggerhead Key Trail
Explore the remote island near the historic lighthouse. - Birdwatching Paths
Seasonal paths used by birdwatchers during migrations.
Top Scenic Viewpoints
- Fort Jefferson rooftop views
- Garden Key shoreline
- Loggerhead Key lighthouse
- Coral reef snorkeling areas
Beginner-Friendly Activities
- Snorkeling around Garden Key
- Fort Jefferson historic tour
- Beach relaxation
- Birdwatching
- Visitor center exhibits
Nearby Getaway Towns
Key West, Florida – Primary gateway city where ferry and seaplane transportation depart.
Waterfalls, Lakes, or Natural Highlights
- Fort Jefferson historic structure
- Garden Key beaches
- Coral reef ecosystems
- Loggerhead Key lighthouse
- Pristine turquoise waters
Scenic Drives
There are no roads or scenic drives within the park, as the islands are small and accessible only by boat.
Maps & Navigation Resources
Visitors can use:
- Official NPS park maps
- onX Backcountry App
- AllTrails hiking maps
- Printed visitor center maps
- GPS navigation hiking apps
One Day Itinerary
Morning
- Ferry ride from Key West
- Explore Fort Jefferson
Midday
- Snorkel around Garden Key
- Picnic lunch on the beach
Afternoon
- Walk the fort walls
- Birdwatching along the island
Evening
- Ferry return to Key West
- Sunset views on the water
Popular Flora
Vegetation is limited due to sandy islands and salty conditions.
Common plants include:
- Sea oats
- Mangrove trees
- Sea lavender
- Coastal grasses
- Tropical shrubs
Popular Fauna
Marine life:
- Sea turtles
- Tropical reef fish
- Lobsters
- Coral reef species
Birds:
- Sooty terns
- Brown noddies
- Frigatebirds
Other wildlife:
- Nurse sharks
- Dolphins
Advanced/Backcountry Activites
- Scuba diving coral reefs
- Kayaking between islands
- Remote island exploration
- Extended camping trips
Park History
Dry Tortugas was discovered by Spanish explorer Ponce de León in 1513. The islands later became an important strategic military location, leading to the construction of Fort Jefferson, one of the largest brick forts ever built in the United States. The fort also served as a prison during the Civil War.
Visitor Tips and Safety
- Bring plenty of water and supplies.
- Most visitors arrive via ferry from Key West.
- Wear reef-safe sunscreen when snorkeling.
- Shade is limited on the islands.
- Weather and sea conditions can change quickly.
Top 5 Bucket List Experiences
- Explore historic Fort Jefferson
- Snorkel coral reefs around Garden Key
- Visit Loggerhead Key lighthouse
- Camp overnight on Garden Key
- Watch sunset over the Gulf of Mexico
Fun Facts
- Dry Tortugas is almost entirely surrounded by water (99%).
- Fort Jefferson required over 16 million bricks to build.
- The park protects part of the Florida Reef system.
- The name “Dry Tortugas” refers to the lack of freshwater on the islands.
- The park is one of the least visited national parks due to its remote location.
Additional Resources (2)
• Dry Tortugas Ferry Information – Ferry transportation from Key West to the park.
• AllTrails – Dry Tortugas National Park Trails – Trail maps and island exploration routes.
• National Park Foundation – Dry Tortugas Overview – Conservation information and park highlights.
• Florida Keys Tourism – Dry Tortugas Guide – Travel tips and visitor highlights.
• Dry Tortugas National Park Wikipedia Overview – Background on park history, geography, and wildlife.