catacombs of paris
cave
fumi
fumigène
graffiti
shadow
silhouette
smoke
tags
trespassing
underground quarry
underground tunnel
Smoked-in gallery - it's more fun in the maze when you are in the fog!
Catacombs of Paris (off-limit area), 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.