Castillo San Cristobal

On my last day in Puerto Rico, I explored¬†Castillo San Cristobal, a fort built by the Spanish to protect San Juan from attack by land. It was built between 1634 and 1790, and then the U.S. added a few concrete additions during World War II. The fort is huge and has a series of tunnels. Some of these tunnels are huge, connecting the different levels and areas of the fort, and were designed to have defensive explosives. Some of the tunnels are really small, and you have to stoop to move through them. If you ever get a chance to visit, try to get one of the ranger guided tours of the tunnels. Those tours besides being very informative, let you go inside some of the really small tunnels in which you normally aren’t allowed.

View from top level

View from top level

Old stone design

Old stone design

Upper level

Upper level

Upper level looking into courtyard

Upper level looking into courtyard

Upper level artillery foundation

Upper level artillery foundation

View from newer concrete WWII lookout

View from newer concrete WWII lookout

Entrance to small, normally inaccessible tunnel

Entrance to small, normally inaccessible tunnel

Small, normally inaccessible tunnel

Small, normally inaccessible tunnel

View from courtyard

View from lower, exterior courtyard

Entrance to lower tunnel with symbol on top warning of explosives

Entrance to lower tunnel with symbol on top warning of explosives

Inside a tunnel

Inside a tunnel

Dungeon entrance

Dungeon entrance

Courtyard with view to city through window

Courtyard with view to city through window

Main courtyard

Main courtyard

Entrance to the main tunnels

Entrance to the main tunnels

Soldiers' quarters

Soldiers’ quarters

Officers' quarters

Passageways in soldiers’ quarters

Exterior of fort

Exterior of fort

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