Aven des Nîmois

From the entrance (1 x 0.6), an inclined plane leads into a geode from which the P 10 starts, a small room with speleothems at elevation -9 reached through a skylight. At the base of the shaft (P14), after a short downclimb one discovers a large descending chamber (20 x 4), with an average height of 5 m. From the ceiling two chimneys rise, going noticeably back up toward the surface. In the scree, at the level of a low passage, one squeezes into a narrow perpendicular meander (east-west joint) that opens into a small room.

The P 10 is a small room with speleothems. The bottom of the cavity, at -40, is a speleothem-filled side passage from which a chimney starts.

Two possibilities are offered.

1 - Higher up, a climb on a flowstone followed by a narrow crawlway emerges at elevation -21, into a P 20 (rubbing). After a ledge at -34, the shaft descends on a flowstone to reach the bottom of the cavity at -40 in a speleothem-filled side passage from which a chimney starts.

2 - Through a skylight, on the right wall, one gains access by a (hazardous) downclimb into a joint intersected by numerous erosion blades (a skylight at 25 leads back into the P 20). Continuing the downclimb allows one to set foot at the bottom of the cavity in the chimney mentioned above.