The cavity has three entrances. The one closest to the quarry is a vertical entrance, by means of a 6.50-metre pit; a rock bridge separates it from another entrance located 1 metre away and blocked by large blocks, probably to prevent animals from falling in at the time. Through the third entrance it is necessary to overcome a vertical step of 1 metre, followed by a further step of 1.70 metres, followed by a short sloping gallery that leads us to a room of 15X10 metres, the floor of which is gently sloping in a NE direction, while in a SW direction it is steeply sloping, where a ramp of blocks takes us along a short gallery to a final small room of 9X4 metres with a triangular shape, at the end of which there is a small pit blocked by blocks. The approximate vertical drop is 19 metres and the length is also approximately some 90 metres.

These data are the result of having made a survey from entrance to bottom and in the NE gallery, carried out in January 2016; it would be interesting to carry out a new survey.

Unfortunately, both outside and inside the cavity we find a large quantity of drinks cans (January 2016).

Update: Montse Mañosa informs us that, together with Jordi Navarro, both from the Centre Excursionista de Castellar del Vallès, on 2 April 2022 they proceeded to remove, both from the interior and the exterior of the cavity, all the rubbish that was there. We hope the current state lasts.