Above Km. 5 of the BV-2116 road that links the urban centres of Castellet i la Gornal and Clariana, we will take the descending track towards the Font d'Horta and Cal Bladet for about 180m, until reaching the Font d'Horta bridge where we will leave the vehicle and continue on foot along the path that starts on the other side of the bridge and heads towards the Font d'Horta.

We will go up the Torrent de Font d'Horta for about 600m along the marked path; about 50m before the Font d'Horta, which remains to the right of the path, we take a very discreet track on the left of the path, which goes back over the path already covered at a higher level; we will follow it for 120m, at which point we will leave it to go up to the right, now without a path, a drop of approximately 20m.

Taking the Esquerda del Sostre de Llastra as a reference, the cavity is about 10m to the SW, at the upper part of a small rise.