Mark your calendar so you don’t miss the Free Admission to the Castillo de San Marcos — Saturday, September 27, 2025 — National Public Lands Day! Come experience this National Park.
In fact, all National Park Service sites that charge an entrance fee will offer free admission to everyone. Please Note: other fees, including timed entry or reservation fees, may apply.
Operating Hours:
First admission is at 9:00am | Last admission is at 5:00pm
The Castillo closes and visitors must exit at 5:15pm
