It begins with a gallery on a slope about 15 metres long, then continues with a vertical section of about 14 metres, from where the large diaclase that forms the cavity can already be seen. At the base of this first pit and in a SE direction, a gallery climbing back up begins, filled in by large blocks. In a NW direction, following the main fracture, a 9-metre pit continues, leading to the very middle of a descending ramp occupied by large clastic materials. Among them, one can continue through a new pit of about 10 metres of drop that lands at the bottom of a narrow and elongated base totally occupied by blocks. In the final section of this level, one can still climb about 6 metres to reach a short hanging gallery, formed among the blocks.