The entrance is very narrow, followed by a drop of -2 metres, where we find a fork. To the W, we will reach a chamber that has a window to the outside through which jackdaws enter. From the chamber and in a northerly direction, we will continue along a narrow fissure that descends approximately some 10 metres. Returning to the fork and in a northerly direction, we will continue through two small consecutive chambers, then descend into a chamber that has a chimney and below it a wolf skull. We will continue through three chambers joined by narrow passages, where scattered on the ground we will keep finding bones. From here in an easterly direction, we will reach a long chamber with a hole on the right that descends among fallen blocks, and on the left a hole that gives access to a chamber with lithogenic formations, at the end of which there is an impenetrable pit at 5 metres, also formed by small blocks.

At the end of a chamber with lithogenic formations there is an impenetrable pit at 5 metres, also formed by small blocks.