The mouth is a 0.6x2 metre fissure where a 2-metre step has to be overcome (going up it is somewhat more difficult if the wall is wet). Immediately, on the right, we find a horizontal gallery. At the end of this gallery and on the left, light can be seen coming from outside through the upper mouth. From the entry point we can continue down the main gallery; a whole series of passages between blocks will lead us to an elongated chamber, the widest and deepest place in the cavity. At the end of this chamber and making an 8-metre climb up on the left, one reaches an upper ceiling. Then, progressing along a ledge, we will reach a group of rather narrow fissures which end up closing.

In the horizontal gallery there are fossilised stalactites and stalagmites.

From the entry point we can continue down the main gallery; a whole series of passages between blocks will lead us to an elongated chamber. At the end of this chamber and making an 8-metre climb up on the left, one reaches an upper ceiling. Then, progressing along a ledge, we will reach a group of rather narrow fissures which end up closing.