Made up of seven small islands, it is one of the world’s most unique eco-attractions. Its crown jewel, the historic Fort Jefferson, was once used as a prison during the Civil War. Explore and learn of its history with one of our guides and enjoy an array of activities. Cruise in spacious comfort to Fort Jefferson aboard the official Dry Tortugas National Park ferry - The Yankee Freedom. A high-speed catamaran, our vessel transports guests 70 miles from Key West to the park. There’s something for everyone! Book Now and Explore Uncharted Territory at the Dry Tortugas National Park!