• Cannon firing on the gundeck of the Castillo de San Marcos

    Castillo De San Marcos

    National Monument Florida

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  • Summer Weather

    Afternoon Thunderstorms can create dangerous amounts of lightning strikes. If Lightning is visible from the Castillo, Gundeck closures will take place. Click this link for the local weather forcast. More »

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Did You Know?

Map showing the Gulf Stream flowing around the Florida Peninsula

The Gulf Stream was first described by Spanish explorer Ponce de León in 1513. It was the first leg of the route home for the great Spanish treasure fleets. Castillo de San Marcos National Monument, Florida