BHV
catacombs of paris
cave
ossuary
trespassing
underground quarry
Urban caver BHV in the Ossuary
Catacombs of Paris, about 20 meters (60 feet) underground, under Paris city center.
This is a part of the 200 Km network of ancient tunnels not opened to the public, but regularly visited by trespassing urban cavers called "cataphiles". See more information in the description of the photo album.