The large entrance leads into a gallery that gradually narrows until it becomes tight and ends in a pit that connects with a gallery situated 14 metres lower down. This chamber, elongated in a N-S direction, connects laterally with a gallery that heads towards the WSW, which after 12 metres reaches a new pit of -6 metres, at the bottom of which and slightly elevated there is a crawl that gives access to another chamber in the shape of a window, opening about 2 metres above its base. This chamber is elongated in a NE-SW direction with a low ceiling and the floor occupied by a large quantity of gours with water, the whole chamber is of great beauty.