A narrow ascending fissure gives access to a perpendicular fissure of good dimensions. To the left it continues in a gentle descent for 12 metres, then rises again just over a metre, beginning a steep drop while the gallery gradually narrows until it becomes impassable, although the daylight from outside can be seen at the end. Standing once more in the access gallery, continuing to the right one must climb a 4-metre step; here begins an ascending gallery with abundant vegetation, the gallery descends one metre and rises again until it ends; at this point we find a small pit of just over a metre followed by a narrow passage that gradually closes.