National Monument
Castillo de San Marcos National Monument is a National Monument in Florida. The NPS currently lists 2 active alerts (1 closure), 0 campgrounds and 0 visitor centers; entrance fees start at $15.
Florida National Monument America the Beautiful pass accepted
Updated · NPS Data API
“Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortification in the continental United States and interprets more than 450 years of cultural intersections.”
Active alerts
2
Closures
1
Campgrounds
0
Visitor centers
0
2 active NPS alerts as of Oct 28, 2026: 1 closure, 0 danger, 0 caution and 1 information.
Closure
Starting July 27, 2026, Castillo de San Marcos National Monument will begin construction to replace, raise and rehabilitate the park’s failing seawalls. The historic fort will remain accessible throughout the project. Some areas outside of the fort will be closed for safety.
Posted or updated Jul 20, 2026 ·Park conditions on nps.gov
Information
Fee Stations are only accepting credit cards for the purchase of entry tickets and passes.
Posted or updated Feb 28, 2022 ·Park conditions on nps.gov
The Castillo de San Marcos is considered to be a "walk-in" park. The entrance fee applies to each individual. Tickets are not transferable and cannot be given to other guests.
| Fee | Cost | Details |
|---|---|---|
| Entrance - Per Person | $15 | The Castillo de San Marcos is considered to be a "walk-in" park. The entrance fee applies to each individual. |
| Pass | Cost | Buy |
|---|---|---|
| Annual Entrance - Park | $45 | At the park |
The interagency America the Beautiful pass is accepted here. This park is cashless — bring a card or buy your pass online.
Activities the NPS lists for Castillo de San Marcos.
Living HistoryHistoric Weapons DemonstrationJunior Ranger ProgramPark Film
Advertisement
The Castillo de San Marcos is open to the public 7 days per week, except Thanksgiving Day (fourth Thursday in November) and Christmas Day (December 25).
| Day | Hours |
|---|---|
| Monday | 9:00AM - 5:00PM |
| Tuesday | 9:00AM - 5:00PM |
| Wednesday | 9:00AM - 5:00PM |
| Thursday | 9:00AM - 5:00PM |
| Friday | 9:00AM - 5:00PM |
| Saturday | 9:00AM - 5:00PM |
| Sunday | 9:00AM - 5:00PM |
Weather: St. Augustine has a semi-tropical climate with over 300 days of sunshine each year. Summers (May-September) are hot, bright, and humid with afternoon thunderstorms common.
No visitor centers are listed for this site in the NPS data.
No NPS campgrounds are listed for this site. Nearby national forests or state parks may offer camping.
On Amazon
As an Amazon Associate I earn from qualifying purchases.
Big Cypress National PreserveBiscayne National ParkCanaveral National SeashoreDe Soto National MemorialDry Tortugas National ParkEverglades National ParkFort Matanzas National MonumentGulf Islands National SeashoreTimucuan Ecological & Historic PreserveAll in Florida
Advertisement
