Construction of Fort Jefferson was begun in 1846 but never completed. President Franklin Roosevelt declared it and the waters surrounding it a National Monument in 1935.
The Dry Tortugas exist in a subtropical climate. Temperatures range from the mid-50s to mid-80s. April and May are often idyllic. There are essentially two seasons: The winter season (December-March), which can be windy with rough seas, and the tropical storm season (June-November) during which Dry Tortugas experiences both hot, humid weather and calm seas or severe weather events. Due to our ever-changing weather patterns, an accurate weather forecast is recommended before your visit.
The park is open year round during daylight hours, and is only accessible by boat or seaplane.
This is a cluster of 7 small islands. As such the only way to reach them (and travel between them) is by boat or seaplane.
The largest of the islands, Garden Key, hosts Fort Jefferson. Walking tours are provided and snorkeling is a must. All traffic is on foot.
Guided fishing trips
Guided wildlife viewing trips content=
Sailing charters and you can go diving there
Limited camping is available. It is $3/person per night.
A seven day pass is $5 for adults.
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Ryan Holliday, John Broughton, Stacy Hall, Nick Roux and Ian Kirk, Inas and Huckabmm
This travel guide also includes text from Wikipedia articles, all available at View full credits