Some say that Castillo de San Cristobal is the largest fortress built in the New World. The vast 17th-century castle is certainly one of the most impressive sites in Old San Juan. Listen to the tales associated with this fortification as you walk around its ramparts and explore its interior.
Picture life in the fortress in the 17th century, when construction began. After a series of attacks on San Juan, the Spanish occupiers of Puerto Rico decided to build more defenses. They started work on San Cristobal in 1634 but its completion took over 150 years.
Roam around the fortress by yourself or join one of the National Park Service rangers, who offer daily guided explorations of the site. Start by watching an informative video that relates the history of the fortification, then head out to explore the different facets of the building.
Look for different details around the castle, such as military bunkers and pillboxes built in 1942 by the U.S. Army. Other features include the drill square and bombproof rooms known as casemates. Wander through tunnels where gunpowder was kept and peer though ports that were used for firing the cannons.
Stroll down to the Garita del Diablo, a sentry box by the water’s edge. Rumors abound that soldiers would mysteriously disappear here, giving it its devilish nickname.
Head under the fort to find five vast cisterns designed for holding 800,000 gallons of rainwater. Imagine being a prisoner in the castle’s dungeon, where you can see drawings on the wall made by an 18th-century inmate.
Castillo de San Cristobal is located on the island of Old San Juan, near several other heritage sites and museums. Metered parking is available nearby and trams run from cruise ship piers to the fortress. Purchase a ticket to all of the San Juan National Historic Site and you have access for a whole year to the Castillo, as well as the San Felipe del Morro Fortress and more.
