

S.e.a.d.a.c.c.
Faubourg Saint-Jacques
Descend 102 steps into Paris's underbelly: a 12th-century limestone quarry turned labyrinthine museum 20 meters beneath Hôpital Cochin. Armed with flashlights, you'll explore 1.2 kilometers of chilly, shadowy galleries where miners once carved stone for the city above.
underground exploration
historic limestone quarries
flashlight tour required
15°C year-round
Tips
🧥bring a jacket, it's 15°C down there
🔦flashlights provided for the dark galleries
🪜102 steps each way, not for the faint of heart
S.e.a.d.a.c.c.
Faubourg Saint-Jacques


Descend 102 steps into Paris's underbelly: a 12th-century limestone quarry turned labyrinthine museum 20 meters beneath Hôpital Cochin. Armed with flashlights, you'll explore 1.2 kilometers of chilly, shadowy galleries where miners once carved stone for the city above.
underground exploration
historic limestone quarries
flashlight tour required
15°C year-round
Tips
🧥bring a jacket, it's 15°C down there
🔦flashlights provided for the dark galleries
🪜102 steps each way, not for the faint of heart