On the C-44 road from l'Hospitalet de l'Infant to Masriudoms, at km 3.71 on the left side of the road there are two accesses to two tracks. Turning is prohibited, you must go as far as Masriudoms to turn and come back in the opposite direction, and access via the first of the two aforementioned tracks; after 100 metres leave the vehicle and from the left side of the track the PC-R 90 starts, which we will follow in the direction of the Collet de Puntalt. The cavity is very probably between the Collet de Puntalt and the Mola de Nadell, but we do not know its exact location, therefore the coordinates provided only indicate the area where the cavity may be found.