Directions, Hours and Fees
The Castillo de San Marcos National Monument is located in downtown St. Augustine, Florida. St. Augustine is located on Florida’s Northeastern Atlantic coast about midway between Jacksonville and Daytona Beach.
Nearby Jacksonville and Daytona are served by international airports with easy access to I-95. Rental cars are available at the airports and also in St. Augustine.
From I-95: Take the exit for St. Augustine Historic Sites and Downtown (Route 16, Exit 318). Follow Rt. 16 to US 1. Turn right on US 1 for approximately one mile to West Castillo Drive. Turn left on West Castillo to the traffic light. Turn right at the light. The Castillo and parking are ahead on the left.
From US A1A: The Castillo is located on A1A in downtown St. Augustine.
Operating Hours & Seasons
The Castillo de San Marcos is open to the public from 8:45 AM to 5:15 pm every day of the year except December 25. (The ticket booth closes at 5:00 pm.) The Park grounds are closed from midnight until 5:30 am.
Visitation is lowest from the middle of September through late November.
Visitation is highest June through Labor Day, and quite high on summer and holiday weekends when an average of 3500 people visit the Castillo daily.
School group visitation is quite high February through May. High visitation can also be expected during the December holidays, and March through April.
The Castillo de San Marcos is considered to be a "walk-in" park. The entrance fee applies to each individual.
Children (age 15 and under) are admitted free of charge but must be accompanied by an adult.
Learn about the Interagency Passes here.
Only schools which are requesting a waiver of the entrance fee need a reservation.
For further information on planning a school field trip go here.
Did You Know?
Black, or gun, powder is a mix of potassium nitrate, sulfur, and charcoal used as a propellant charge in cannons. Burning rapidly when ignited, it expands 600 times its volume creating pressures that can hurl a cannonball up to 3.5 miles! Castillo de San Marcos National Monument, Florida