The route crosses the Tortiellas pass, goes up a small slope to the end of a ski lift and continues straight up towards the crest of the sierra. At the edge of the mountain there is an abyss with collapsed walls that fall towards the Candanchú slope and in front of some rocky walls on top of a grassy slope where the entrance to the abyss and the first installation of the rappels are located. The path to get there is clear halfway up the slope, first along the grassy slope and at the end through a small rock that goes down to the hole in the cave. There are two facilities, one older than the other. The first is more modern and has the cleanest abseil down a vertical wall. The first rappel is the most comfortable and simple, it ends on a small circular platform where a fork appears. The descent continues a few meters to the left and immediately the rings of the next rappel appear on the wall to the left. The abseil is a chimney channel with several projections and a lot of loose stones, it is almost inevitable to throw stones during the descent. The first ones to go down must get out of the rappel line while the next ones go down, there is enough space. On the last step it is good to turn on the front. The following rings are on the wall to the left, visible with the natural light that enters through the exit hole. In this rappel stones also fall but it is easier and it is practically all from the outside.