A Barracuda swims over some of the reef as the sea bottom settles from a recent wind storm
Approaching Garden Key, Dry Tortugas, via the Yankee Freedom II Ferry.
The Yankee Freedom II Ferry docked on Garden Key.
The Sally Port Entrance to Fort Jefferson.
Bottom level of arched casemates where cannons would be stationed.
Main magazine building.
Fort Jefferson Has 2,000 Arches.
Peering out of a decaying embrasure.
Nearby Loggerhead Key and its lighthouse.
The parade grounds of Fort Jefferson.
Overlooking the moat.
Each of the fort's walls meet at an impressive bastion.
The north beach of Garden Key.
The moat walk.
Ghost crab.
Clear skies and evening light on Fort Jefferson.
Tropical vegetation surrounds the campground.
A typical campsite in Dry Tortugas National Park.
A circular staircase in Fort Jefferson.
The Fort Jefferson lighthouse.
Fort Jefferson courtyard and large Rodman cannon.
Top level arched casemates where cannons would be stationed.
Impressive architecture at Fort Jefferson, Dry Tortugas National Park.
Outer casemate access archways.
Fort Jefferson courtyard and lighthouse.
Moat walk panoramic with the South Beach and campground on the right.
Florida sunset over the Gulf of Mexico.
The calm waters of the Gulf of Mexico.
Clouds sweeping over Fort Jefferson.
A haunting light through an embrasure.
An intimidating bastion stands above shallow waters.
An impressive Rodman cannon atop Fort Jefferson with the fort's lighthouse in the background.
Soft light and clouds above nearby Loggerhead Key.
East end of Garden Key and the harbor.
Panoramic photo of the adjacent Bush Key (left), harbor, and dock.
Fort Jefferson's Sally Port and campground above.
The land bridge joining the adjacent Bush Key.
Private boats may moor in the Garden Key harbor with National Parks Service permission.
Outer casemates and the Fort's Prison cell.
The prison cell is famous for imprisoning Dr. Samuel Mudd, who was arrested for abetting John Wilkes Booth after his assassination of President Lincoln.
The overflow and group camp area.
Overflow and group camp area with private campsites amongst the foliage.
Yankee Freedom II Ferry making its way through the channel.
Surrounding reef.
Surrounding reef.
The park is also accessible by chartered sea plane.
A boat moored in the Garden Key harbor.
The park is also accessible by chartered sea plane.
North beach access for snorkeling.
Panoramic photo of the shallow waters and moat walk.
Snorkeling is a popular activity along the moat walk.