Fort Matanzas National Monument

Follow an elevated boardwalk through some pristine Florida barrier island habitat.
Fort Matanzas National Monument preserves the fortified coquina watchtower, completed in 1742, which defended the southern approach to the Spanish military settlement of St. Augustine. It also protects approximately 300 acres of Florida coastal environment containing dunes, marsh, maritime forest, and associated flora and fauna, including threatened and endangered species.
Map showing location of park.
Castillo de San Marcos & Fort Matanzas National Monuments to Reopen on Saturday, October 12, 2024, following Hurricane Milton
Castillo de San Marcos National Monument will return to normal operations on Saturday, October 12, 2024, following Hurricane Helene. Fort Matanzas National Monument will reopen, with restrictions, on Saturday, as well.
Castillo de San Marcos & Fort Matanzas to Close on Monday, October 7, 2024, due to Hurricane Milton
Castillo de San Marcos and Fort Matanzas National Monuments will be CLOSED starting Monday, October 7, 2024, in anticipation of severe weather and potential impacts from Hurricane Milton.
Fort Matanzas, a fortified watch tower made form coquina.
Photo by NPS Photo
Two story building with stone base and wood second floor, oak trees, grass, two signs.
Photo by NPS
A nature trail boardwalk with seating area.
Photo by NPS Photo
Wooden bunks and uniform items in the soldier's quarters.
Photo by NPS Photo
The cannon of Fort Matanzas point toward the river's inlet.
Photo by NPS Photo
People wading in the river and relaxing on the beach.
Photo by NPS Photo