TRAILGRAPH

A few of the stars at night with a view of Fort Jefferson.
National Park

Dry Tortugas National Park

Florida

Tonight

🌗 46% moon

8.1 h fully dark

Crowds

low

Open today

Open

Entrance

$15

Park Closure

Seasonal Closure: Bush Key

Visitor access to Bush Key is suspended until Fall 2026 to protect nesting Sooty Terns, Brown Noddies, and Magnificent Frigatebirds. Boaters must maintain a distance of 100 feet from the island's mean low tide.

Official NPS alert →
Park Closure

Sections of moat wall closed until Summer 2026

Sections of the moat wall that were damaged by Hurricanes Irma (2017) and Ian (2022), as well as several hurricanes in 2024 are undergoing repair and reinforcement. For your safety, please follow posted signage and do not cross any barricades.

Information

Migrant Notice

Like elsewhere in the Florida Keys, we have seen an increase in Cuban migrants arriving by boat from Cuba and landing on the islands of Dry Tortugas National Park. You may observe migrant landings at the park and visitor areas may be impacted.

Caution

Garden Key Harbor Light

Vessel operators - the Garden Key Harbor Light is undergoing repairs and is extinguished. At this time it is unknown when the light will again be illuminated.

Almost 70 miles (113 km) west of Key West lies the remote Dry Tortugas National Park. This 100-square mile park is mostly open water with seven small islands. Accessible only by boat or seaplane, the park is known the world over as the home of magnificent Fort Jefferson, picturesque blue waters, superlative coral reefs and marine life, and the vast assortment of bird life that frequents the area.

Activities

Topics

Entrance fees

$15.00Entrance - Per Person

Hours & seasons

The Dry Tortugas is open 24 hours, 7 days a week. This includes holidays.

Generally open:

winterspringsummerfall

Hours are reported by the park — verify before you go.

Conditions

Quietest months (fewer crowds): Oct

Typical crowds: low

Weather now: ☁️ Overcast, 77°F

🌦️ 87°/77°

🌦️ 85°/81°

🌦️ 86°/79°

Typical monthly recreation visits · NPS avg 2023–2025 orange months are the quietest by crowds.

Quietest months

Relative crowds by month — lighter is quieter; ringed months are the calmest by crowds.

Jan

75%

Feb

77%

Mar

85%

Apr

87%

May

100%

Jun

89%

Jul

85%

Aug

69%

Sep

62%

Oct

52%

Nov

71%

Dec

79%

% of the busiest month's visits.

Log a sky reading

Measured the sky with an SQM meter or app? Add your reading (16 = city glow … 22 = pristine). Opt in under “Travelers like you” to share it on the community leaderboard.

Things to do

Viewing Wildlife in Dry Tortugas

Fishing at Dry Tortugas National Park

Paddle to Loggerhead Key

Snorkel Little Africa

Campgrounds

Garden Key Campground · 8 sites · first-come

Visitor centers

Florida Keys Eco-Discovery Center

Garden Key Visitor Center

Accessibility

Accessible RoomsAccessible SitesRestroom - AccessibleWheelchair AccessibleWheelchairs AvailableAudio Description

1 accessible campground(s)

2 audio-described place(s)

Reported by the park — verify before you go.

Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.

By the numbers

A visual read on Dry Tortugas National Park — its character, trails, sky, and weather.

Park fingerprint

How this park scores across the dimensions travelers care about.

Trail difficulty

Difficulty mix across this park's trails.

3-day forecast

Daily high and low temperatures (°F).

People & stories

Figures tied to Dry Tortugas National Park — each spans a cross-park journey.

John Newton

Military

Samuel Mudd

Civil War, Medical History, Lincoln Assassination

Passport stamps

Mark the stamps you've collected — they show in your memory and along your routes.

🎫 Garden Key Visitor Center

Places to see

Bird Key Wreck

Bird Key Wreck

Campground Restroom

Campground Restroom

Dock House and Information

Dock House and Information

Dr. Mudd's Cell

Dr. Mudd's Cell

audio
Dry Tortugas Research Natural Area (RNA)

Dry Tortugas Research Natural Area (RNA)

Fort Jefferson

Fort Jefferson

Fort Jefferson Dungeon

Fort Jefferson Dungeon

Garden Key

Garden Key

Little Africa Patch Reef

Little Africa Patch Reef

Loggerhead Key

Loggerhead Key

North Coaling Docks

North Coaling Docks

South Coaling Docks

South Coaling Docks

Audio & media

🎧 Birdstranscript

🎬

🖼

Learn more

50 Nifty Finds #45: Holding the Line

The National Park Service (NPS) was only 26 years old when the United States entered World War II. The young bureau faced very real threats to its mission, with increasing pressure to contribute its natural and cultural resources to the war effort even as its budget and staff were slashed. Under the leadership of Director Newton B. Drury, the NPS was able to do its part for the war while maintaining its public trust responsibilities to the American people.

Changing Patterns of Water Availability May Change Vegetation Composition in US National Parks

Across the US, changes in water availability are altering which plants grow where. These changes are evident at a broad scale. But not all areas experience the same climate in the same way, even within the boundaries of a single national park. A new dataset gives park managers a valuable tool for understanding why vegetation has changed and how it might change in the future under different climate-change scenarios.

Connecting Fire, Connecting Conservation

Fire burns across south Florida in a landscape level prescribed fire operation.

Data Manager Profile: Judd Patterson

Meet Judd Patterson, Data Manager for the South Florida Caribbean Network. As a data manager, helps wrangle all the information that we collect on the health of our park resources. Judd is excited about the stories data can tell through time, whether that's looking back at park records from over a hundred years ago, or making sure the science we do in our parks today become time capsules for future generations to learn about how things were back in 2021.

Fort Jefferson Virtual Tour

Construction of Fort Jefferson began in 1846 on Garden Key, surrounding a brick lighthouse that had been built there in 1825. The fort was intended to protect American shipping interests in the Gulf of Mexico. It was the largest all-masonry fort in the United States. Explore Fort Jefferson via HDP’s virtual tour, point cloud, animations, and archival HABS documentation.

Guide to the Thomas J. Allen Photograph Collection

Finding aid for the Thomas J. Allen Photographs in the NPS History Collection.

NPS Geodiversity Atlas—Dry Tortugas National Park, Florida

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

National Park Service Protects Critical Corals from Destructive Disease

The National Park Service is working to increase overall coral health and resilience to climate change and other environmental stressors and prevent the extirpation of multiple species in the Southeastern U.S.

How Dry Tortugas National Park connects

This park's activities, topics, location, and on-the-ground places — one hop in the graph. Drag to explore; click an activity, topic, or related park to follow it.

Park

Activity

Topic

State

Campground

VisitorCenter

PassportStamp

Trail

ThingToDo

Alert

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