This is not a journey for the faint of heart. One way is a middle-of-the-night descent through a manhole and down a ladder. Once inside, a sand-colored maze of galleries, nooks and crannies unfolds. Ominous holes seem to descend to the center of the Earth.
It’s an all-weather trip that includes strolling, sloshing through mud and slithering through narrow tunnels.
“Paris is a Mecca” for underground exploration, said Lazar Kunstmann, a spokesman for the group that set up a cinema across the Seine River from the Eiffel Tower. The group has seven other subterranean sites, he said, refusing to give details.
In the eternal night of underground Paris, secrecy is sacrosanct, creating a subculture with its own code and names.
Slipping into the underground, social classes melt away, and “there’s a sense of having a double life,” said Patrick Aalk, a photographer with more than two decades of experience as an urban explorer.
Like Lewis Carroll’s Alice discovered when she fell through a rabbit hole, fear, intrigue and wonder await the subterranean traveler. Instead of a tea party with the Mad Hatter, there are parties by flashlight in dank, musty quarry rooms bearing names like “Byzance,” “the Cellar” or “Room Z.”