The entrance shaft, located inside a building, is artificial in origin with an elevation change of -12 metres; metal stairs facilitate the descent. The base is flooded and opens at one end into a room 7X6 metres with a low ceiling. An accumulation of large blocks, located to the right of the room in the direction of travel, forms an abrupt rise in the ceiling; at the opposite end, after traversing 4 metres of flooded gallery, a low passage of about 0.30 metres opens between the ceiling and the water. This passage is necessary in order to access a large room of 28X23X3 metres. At the right end of the room we find a sump of considerable dimensions and -9 metres deep, with a continuation perceivable in the form of a horizontal gallery of about 2 metres in diameter; this gallery heads towards the interior of the massif by means of the dip of the strata. The non-flooded part of the large room is occupied by a large collapse of the strata, at the end of which and after a short ascending elevation change, a narrow gallery opens between unstable blocks about 20 metres long, whose ascending level brings us to +2.3 metres with respect to the access of the artificial shaft.

Speleometry:
Artificial shaft: -12 metres
Sump: -18 metres
Gallery with respect to shaft mouth: +2.30
The total elevation change is 32.30 metres (-30/+2.30).

The base of the shaft is flooded. An elongated sump carries the water to the nearby beach, located only about thirty metres away. The water occupies 2/4 parts of the floor plan of the large room. At the right end of the room we find a sump of considerable dimensions and -9 metres deep.

The descent is made through the artificial shaft by means of metal stairs. From the flooded base, an elongated sump carries the water to the nearby beach. To access the large room it is necessary to pass a low passage of about 0.30 metres between the ceiling and the water, after traversing 4 metres of flooded gallery.

Cave of 153 metres of length in Torroella de Montgrí.