San Marcos de Apalache Historic State Park is a Florida State Park in Wakulla County, Florida organized around the historic site of a Spanish colonial fort, which was used by succeeding nations that controlled the area. The Spanish first built wooden buildings and a stockade in the late 17th and early 18th centuries here, which were destroyed by a hurricane.
The stone fort was built beginning in 1753. It came under successive control by Great Britain, Spain, the United States and, lastly, the Confederacy during the American Civil War. A U.S. Marine Hospital was built from the materials of the fort. The US took control of the site again in 1865, and the fort site was abandoned.
Wikipedia https://en.wikipedia.org/wiki/San_Marcos_de_Apalache_Historic_State_Park
Official Website https://www.floridastateparks.org/index.php/parks-and-trails/san-marcos-de-apalache-historic-state-park
Coordinates 30°9'5.92" N -84°12'38.398" E