From the Vicenç Barbé refuge we follow the path that passes between the Agulla de la Màquina de Tren and the Miranda de les Agulles until we reach the Pas del Príncep, a col located between the upper needle of the Pas del Príncep and the area of the Agulles del Bitllat. We continue on the path leading to the Coll de Port and follow it to the right in the direction of the Coll del Miracle; having passed this col and before reaching the Balma de les Pruneres, on the left we find this small cavity, a few metres from no. 1.