From the Mas de les Fonts urbanisation, we will head to the coll de la Creu d'Ardenya, where the ruins of can Ardenya are located. From here we will follow the track that leads to the small house at the poliè de can Muntaner, turning off onto the first track on the left that continues. We will reach a point where, beside the track, we will find a large concrete block; from this point, and to the right of the track, we will find the cavity after a distance of 110 metres.