A cave entrance a few metres from the track edge and adjacent to the "window" down to the side pool near the Riaño resurgence. This was first spotted several years ago but not recorded. A crawl over boulders for 4m leads to a choke with no obvious way on and no draught.

Reference: anon., 2013b (Easter logbook)
Entrance pictures :
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :