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National Monument
Castillo de San Marcos National Monument · Florida
Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortification in the continental United States and interprets more than 450 years of cultural intersections. Families can start at the visitor center for maps, exhibits, and Junior Ranger materials; always check nps.gov for current hours and conditions before you go.
Hours, roads, and programs change with the seasons. Check current conditions on the official Castillo de San Marcos National Monument website before you go.
Wild Base Family is not affiliated with, endorsed by, or sponsored by the National Park Service. Park brochures and Junior Ranger books are free official materials published by the National Park Service; our links open the official PDF (on nps.gov) when one is available online.