Cova Gran del Bonretorn

The entrance to the cave is made below a flat rock, where a small vestibule is formed from which a gallery emerges, descending in its initial part, up to the point where it communicates with a side branch. The gallery continues, now flat, until totalling 18 metres in a terminal little room, connected through the ceiling with the outside and, through a hole in its floor, with a lower fissure that descends to -14 metres.

The side branch that begins 6 metres from the entrance is slightly descending and heads SW for 17 metres, at which point it bifurcates, forming a small pit of 3 metres, followed by a new gallery that rejoins the other stretch after 8 metres of passage, at which point there is, above a rise, an exit to the outside through a narrow hole.

At the foot of the junction of the last two galleries described, a crawlway opens that leads to a new descending gallery, which after two rises reaches the point of maximum depth (-22 m).

Very possibly some narrow communication exists with the so-called Cova Petita.