Fissure 21 metres deep. The entrance is funnel-shaped. The initial 10-metre pit leads to a high gallery with a ceiling. In a N. direction the gallery is narrower, and shortly before reaching the end, on the ground a crawlway leads to a small lower chamber full of gravel and with no continuation. Another crawlway on the right leads to a high and narrow gallery of about 20 metres, until reaching a chamber full of blocks with a small pit of doubtful continuation. Continuing through the chamber one reaches a fork of two ascending galleries of approximately 6 and 10 metres.

Taking advantage of the pine we have nearby we install a rope that will serve us to descend the initial 10-metre pit. Turning back and following the gallery in a S. direction, just when we have passed the pit through which we entered, another crawlway on the right leads to a high and narrow gallery of about 20 metres. Continuing through the chamber we reach a fork of two ascending galleries of approximately 6 and 10 metres where the exploration ends.