Fees & Reservations
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.
The City of St Augustine maintains a parking lot in front of the Castillo. The cost is $1.50 per hour which is paid at automated stations which accept most denominations of U.S. coin and currency as well as credit and debit cards.
You may want to consider using the city's parking garage which is only a block away from the Castillo. It is conveniently located and will provide shade for your vehicle.
Did You Know?
A light field artillery piece like this 3 pounder is called a grasshopper because of the way the gun "jumps" when fired. Castillo de San Marcos National Monument, Florida More...