Troy Spring State Park

This 70-foot-deep, first-magnitude spring offers opportunities for swimming, snorkeling and scuba diving.

Nestled in the shallow water of the spring run are the remains of the Civil War-era steamboat Madison, which was scuttled in 1863 to keep it from being captured.

A hidden gem in north-central Florida, Troy Spring has restrooms, an accessible walkway, picnic tables, an interpretive nature trail, and a riverside dock for canoeists and boaters on the Suwannee River.

Only open-water scuba diving is permitted and divers must be certified; no solo diving is allowed.