Castillo de San Marcos National Monument
Castillo de San Marcos National Monument

Historic Forts

Visit Fort Matanzas, Castillo de San Marcos, and Fort Mose for a look back in time.

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COVID-19 Update: Some historic sites and attractions have adjusted operational hours. Please check with the individual business for more details.

With live demonstrations, nature trails, and incredible 360-degree views, these historic forts in St. Augustine are a must-see for your visit. Still standing after 300 years, these amazing structures will wow history lovers. Bird watchers and nature lovers can enjoy access to nearby nature trails and boardwalks too.

The Castillo de San Marcos

castillo san marcos fort
An aerial view of the Castillo de San Marcos.

Standing sentry over St. Augustine, the nation’s oldest city, is the formidable Castillo de San Marcos. Positioned strategically on Matanzas Bay, the fort was built by the Spanish to protect the town and is the most often visited historic site in St. Augustine. Still standing after more than 300 years, obviously the fort has done its job of protecting the citizens of St. Augustine, allowing the city to grow and thrive to present day.

The Castillo de San Marcos is the oldest masonry fort in the continental U.S. After 9 wooden forts designed to protect St. Augustine were burned by invaders, the Spanish militia took on the monumental task of constructing a stone fort that would protect the city and its treasury from pirates, the British and other attackers. The Castillo is made from coquina, a locally sourced stone-like compound made of shell and limestone. The use of coquina as the building material for both the Castillo de San Marcos and the nearby Fort Matanzas created fortresses that were nearly indestructible. Construction of the Castillo began in 1672 and took 23 years to complete. This stronger fortress was never taken in battle. The Castillo played a pivotal role in protecting Spanish St. Augustine from the 1700s to the late 1800s.

In 1924, the Castillo, or Fort Marion as it was known at the time, was declared a national monument by President Calvin Coolidge. He signed a proclamation that also designated Fort Matanzas a national monument.

Hours: Daily from 9 a.m. - 5 p.m. Closed Thanksgiving Day and Christmas Day.

Fort Matanzas

Fort Matanzas National Monument.

Fort Matanzas, located on the Intracoastal Waterway south of St. Augustine, was built by Spanish soldiers as the back door protecting the city by preventing the British sailing through Matanzas Bay from invading St. Augustine. Today, Fort Matanzas has grown to a park of almost 300 acres and features walking trails, picnic areas, small tidal beaches and of course the fort located on Rattlesnake Island, which visitors get to by ferry.

Please check their website or download their app for updates on hours of operation and the ferry schedule prior to visiting.

Hours: Daily from 9 a.m. - 5:30 p.m. Closed Thanksgiving Day and Christmas Day.

Fort Mose State Park

fort mose st augustine
The boardwalk at Fort Mose Historic State Park.

A state park, Fort Mose is historically significant as home to the first free African settlement in the U.S. Long before the Underground Railroad provided slaves with a chance for freedom in the North, a similar escape route ran south from the British, and later, American plantations to Spanish La Florida. Those who escaped from bondage and survived the difficult journey to Florida were given their freedom by the Spanish authorities. The men were also inducted into the Spanish militia, given muskets and ordered to defend St. Augustine from their former owners – a task they pursued with enthusiasm. In 1738, Gracia Real de Santa Teresa de Mose was established just outside the city gate – the first, legally-sanctioned community for African-Americans in what is now the United States.

While the fort no longer stands, the park has a history museum and hosts several festivals and historic reenactments throughout the year.

Hours: Daily from 9 a.m. - 5 p.m.