This Civil War-era fort occupies the majority of Georges Island and is completely open to visitors. Explore the deserted caverns, rooms and (sometimes hidden) passageways of the historic landmark at your leisure, or catch special events like Civil War-era lawn games, baseball and more. Daily ranger tours offer facts about the fort, the Confederate soldiers and political prisoners who were exiled here. Visitor center features exhibits, personal recollections of soldiers and prisoners, and a short film. Open daily mid-May through Columbus Day.