Sights · Our pick in Florida
Castillo de San Marcos National Monument
The Spanish stone fort

About Castillo de San Marcos National Monument
Castillo de San Marcos guards Matanzas Bay at the edge of historic St. Augustine. Entry is $15 for adults (16 and over) and is valid for seven days; under-16s go in with an adult at no charge, and the park takes cards only (nps.gov).
Why it's on our list
- Spanish fort
- $15 per adult (nps.gov)
- Cards only
Opening hours, prices and seasonal openings change, so please check with Castillo de San Marcos National Monument before you go.