Garden Key Overflow Campground is a primitive, first-come, first-served camping area within Dry Tortugas National Park, accessible only by ferry, private boat, or seaplane (approximately 70 miles west of Key West).

The overflow area provides tent-only camping when the 8 primary campsites are full, with composting toilets available and a $15 nightly fee; campers must bring all supplies including drinking water, food, and gear, as there are no facilities on the island beyond a small gift shop.

This remote location is ideal for paddlers and boaters seeking exceptional snorkeling and diving opportunities around historic Fort Jefferson, though visitors should plan thoroughly and be prepared for a completely self-sufficient camping experience.