Castillo San Felipe del Morro—usually called El Morro—has guarded the entrance to San Juan Bay since Spanish construction began in the 16th century.
Why it is iconic
The fort combines six levels of military architecture, ocean-facing walls, sentry boxes and a huge grassy approach that has become one of Puerto Rico’s most recognizable landscapes.
What to see
- Harbor-facing batteries
- Historic ramps and tunnels
- Garitas, or sentry boxes
- Views across the Atlantic and San Juan Bay
Planning
El Morro is part of San Juan National Historic Site, managed by the National Park Service. Check current NPS hours, fees and alerts before visiting.
FAQ
How old is El Morro?
Spanish construction began in 1539 and the defenses were expanded for centuries.
Can you visit El Morro and San Cristóbal the same day?
Yes. They are both in Old San Juan, though allow enough time to explore rather than rushing.
