Standing as the oldest masonry fort in the continental United States, Castillo de San Marcos is more than just a military structure – it’s a testament to St. Augustine’s resilience and Spanish colonial heritage.
The Fort’s History
Built between 1672 and 1695, Castillo de San Marcos was constructed from coquina, a unique shell-stone material quarried from nearby Anastasia Island. This remarkable material’s durability helped the fort withstand numerous sieges and storms over its 300+ year history.
Key Historical Periods:
- 1672-1695: Spanish Construction
- 1702: Successfully defended against British siege
- 1763: Transferred to British control
- 1784: Returned to Spanish control
- 1821: Became U.S. territory, renamed Fort Marion
- 1942: Original name restored
- 1924: Declared National Monument
Visiting Today
Hours & Admission
- Open daily 9:00 AM – 5:00 PM
- Closed major holidays
- Adult admission: Check official site for current rates
- Children under 15: Free with adult
Must-See Features
- Gun Deck: Panoramic views of Matanzas Bay
- Powder Magazine: Original ammunition storage
- Guard Rooms: Period furnishings
- Chapel: Historic place of worship
- Plaza de Armas: Central courtyard
- Sentry Boxes (“garitas”): Iconic photo spots
Daily Programs
Cannon Demonstrations
- Multiple times daily
- Historical weapons demonstration
- Period-dressed interpreters
- Learn about colonial military life
- Great photo opportunity
Ranger Programs
- Historic weapon demonstrations
- Living history presentations
- Junior Ranger activities
- Educational talks
- Guided tours available
Planning Your Visit
Best Times to Visit
- Early morning: Less crowded
- Weekdays: Quieter experience
- Winter months: Comfortable temperatures
- Check our map for parking tips
Photography Tips
- Sunrise: Best light for exterior shots
- Late afternoon: Golden hour on the walls
- High tide: Beautiful bay reflections
- More photo locations around the fort
Nearby Attractions
Within walking distance:
- St. George Street
- Plaza de la Constitución
- Colonial Quarter
- Local dining options
- Historic accommodations
Insider Tips
- Arrive early to secure parking
- Bring water (especially in summer)
- Wear comfortable walking shoes
- Visit during cannon firings
- Take advantage of ranger programs
- Allow 2-3 hours for full experience
Educational Value
The Castillo offers:
- Living history demonstrations
- Hands-on exhibits
- Educational programs
- Historical interpretation
- Cultural preservation insights
Accessibility
- Ground level accessible
- Gun deck accessible via elevator
- Accessible restrooms
- Wheelchair available
- Modified tour options
Special Events
Throughout the year:
- Historical reenactments
- Cultural festivals
- Special ranger programs
- Holiday events
- Evening tours (seasonal)
Preservation Efforts
The National Park Service maintains the fort through:
- Ongoing conservation
- Historical research
- Public education
- Cultural preservation
- Community engagement
Visitor Amenities
- Bookstore/Gift shop
- Restrooms
- Water fountains
- Information desk
- First aid station
Located at 1 South Castillo Drive, the fort anchors St. Augustine’s historic district and provides an essential window into colonial American history. For the most current information about programs and admission, visit the National Park Service website.
Explore more St. Augustine historic landmarks or plan your visit with our interactive map.
This guide is regularly updated to ensure accuracy. Last updated: December 2024
