San Cristobal Fort
San Cristobal Fort is located along the northern coast of Puerto Rico overlooking the Atlantic Ocean. The stone fort was contructed by the Spanish in 1634 to supplement El Morro Fort in protecting the city of San Juan from pirates and invading armies. A protective sea wall stretches from El Morro Fort to San Cristobal Fort and some sections are as high as 150 feet.
San Cristobal Fort is a large complex, about 27 acres, that has towering walls, barracks, sentry stations, tunnels, dry moats and bridges that all combine to make an impressive structure. The fort provides stunning views of the ocean as well as the city of San Juan. Special tours of some of the deeper tunnels are only held on weekend mornings, so call ahead to make a reservation and arrive early.
Similar to El Morro Fort, San Cristobal Fort is a Unesco World Heritage Site and is run by the United States National Park Service. Access to the fort costs 3 dollars, but for an additional 2 dollars you can purchase tickets that grant you access to both San Cristobal Fort and El Morro Fort. A trolley transports visitors between the two forts. Maps are available on site so you can tour the fort on your own, however hourly guided tours in Spanish and English are available. Operating hours of the fort is daily 9am to 5pm.