UTM coordinates: 30S YJ 465112 Length: 140 m.

The mouth of the entrance is not far from the village. You can reach it by the path that starts in el Parc del Calvari and continues for about 15-20 minutes until you turn aside at the entrance. The entrance has a few 50 centimeters in diameter and gives access to a bell pit of about 20 meters, which makes it essential to use ropes and special equipment. Inside we can find different rooms of which continue to be accessed by vertical wells. At the bottom of the cavity is an underground aquifer of great piezometric level.

It should be noted that its exploration must be carried out by specialized people with knowledge of speleology.