This stone fortress, built between 1634 and 1785, guarded the city from land attacks. Even larger than El Morro, San Cristóbal was known in the 17th and 18th centuries as the Gibraltar of the West Indies. Five freestanding structures are connected by tunnels, and restored units include an 18th-century barracks. You're free to explore the gun turrets, officers' quarters, and passageways. Along with El Morro, San Cristóbal is a National Historic Site administered by the U.S. Park Service; it's a UN World Heritage Site as well. Rangers conduct tours in Spanish and English.
Is Puerto Rico the right place for your winter escape? Let the Fodor's Travel Planner recommend the ideal vacation for you.
Visit the Travel Talk forums for help on planning your trip