The cave consists of a main gallery, oriented from NE to SW, about 40 metres long and 9 metres wide on average, with a side chamber to the NW of 10x5 metres and a 6-metre shaft to the SW that allows access through the roof to another chamber of 6x9 metres. At 6 metres from the entrance, a second gallery on a steep slope connects with two chambers, also on a downward slope; the first has a second access to the main gallery. The second, 12x9 metres, is the largest chamber in the cave, and at its far end there is a small vertical continuation that allows reaching the maximum depth at -21 metres.

The first chamber is dominated by the fossil lithogenic process, in the form of large columns that form different pseudogalleries.