Loggerhead Key's Lighthouse. Imagine living on that island?!
There is a lot of great snorkeling around the fort's seawalls and surrounding reefs.
Bush Key is closed due to the bird nests on the island.
Imagine the life on board that sailboat! Traveling the worlds exotic locals.
Fort Jefferson's 8 foot deep moat! Check out all the firing angles to cut down anyone silly enough to try breaching the walls of the fort.