• 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 »

Plan Your Visit

Unique among National Parks, the Castillo de San Marcos embodies nearly 450 years of history and culture that can not be fully experienced in a single visit. A little planning ahead will help make the most of your time with us.

We encourage you to explore our website and discover those areas and activities that interest you the most. The site provides both basic information and background studies that can help you plan a successful visit to the Castillo.

When planning your visit, please keep in mind the average visitor spends between one and two hours at the Park.

 

Did You Know?

The Stone walls of the Castillo de San Marcos glow in the evening sun

The Castillo de San Marcos was known as Fort Marion from 1821 through 1942. Its name had been changed to honor America’s famous Revolutionary War hero, Francis Marion. It regained its original name during WWII. Castillo de San Marcos National Monument, Florida