Castillo de San Marcos National Monument
Florida
$15
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.
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Entrance fees
$15.00 — Entrance - Per Person
Hours
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). A maximum capacity of 100 visitors in the historic fort at any time will be in effect. First admission is at 9:00 a.m. and last admission is at 5:00 p.m. The Castillo closes and visitors must exit at 5:15 p.m. The park grounds are closed from midnight until 5:30 a.m.
Conditions
Weather now: ⛅ Partly cloudy, 72°F
⛈️ 88°/72°
⛈️ 89°/75°
⛈️ 97°/75°
Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.
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