Nice place to scuba dive, do not forget to bring your tripod. The fort is close during the golden hours (if you sleep in the campground - you would not be able to enter in the fort) One of the rare national park in US protecting both human structure, US history and nature this park is a nice blend of human and nature in paradise. Protected by the collapsing wall of Fort Jefferson, several corals and fishes developped far from the corral reef. This coral was "rejected" a couple of day earlier by a severe strom on the beach. I used it as a foreground.