A 1.20X1.20 metre mouth gives way to a drop of -1.70 metres where a descending ramp begins. It is a 15-metre-long joint with a variable width of 1 to 2 metres and a maximum height of 7.50 metres. On reaching the supposed end of the gallery, a hole in the floor is observed through which the cavity continues, but a strong desobstruction would be needed. From here one can climb 4 metres to find a small elevated continuation. It is the same joint along which one can progress 5 metres further. At the end, on the left, there is a fissure that gives onto a pit 10 metres deep, which cannot be accessed due to its scant dimensions. If one looks from above, an air current is observed, and one can ascend 2 metres more, reaching a small chamber among unstable blocks where this air current is lost, which will surely go to the exterior, which is very close by. The vertical drop of the cavity is 8.50 metres.

A 1.20X1.20 metre mouth gives way to a drop of -1.70 metres where a descending ramp begins. On reaching the supposed end of the gallery, a hole in the floor is observed through which the cavity continues, but a strong desobstruction would be needed. From here one can climb 4 metres to find a small elevated continuation. It is the same joint along which one can progress 5 metres further. At the end, on the left, there is a fissure that gives onto a pit 10 metres deep, which cannot be accessed due to its scant dimensions. If one looks from above, one can ascend 2 metres more, reaching a small chamber among unstable blocks where this air current is lost.

On the survey carried out in 1980 by the SIEP, a scant gallery appears that would lead to the exterior; after the opportune observations "in situ", the existence of this gallery could not be confirmed.