Japanese 'Hospital Tunnel'
Adjacent to the Barge Tunnel is this well developed multilevel catacomb tunnel system. It is empty, but spacious and full of relics from its Japanese occupants.

Expert Construction
The cave is full of little alcoves, like these for lanterns or torches. There are multiple entrances, ventilation holes and cross breezeways positioned to disperse cooking smoke and making it easy to enter in a hurry or defend.

Living Quarters
This space for sleeping or a map table is carved into the wall. Behind it is a large area for cooking and even a shrine. There are staircases that wind around and lead up and down to other levels of the tunnel system.

Machine Shop
Deep inside the tunnel is the remains of a trolly system. There are pulleys and cables here, and hardware from the rigging used.

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