Updated 13 February 1998; 13th May 2023

In the woods below the track which rises behind Cueva del Arenal (035). A slope down to the head of a 5.8m vertical pitch which lands on a bouldery slope. Below, two holes down connect and, to the south, a slippery climb rises to an aven.

The route into the cave is a short vertical climb up the wall and a slope to a hole into passage. An aven on the right is passed and after another 5m, a deep 4 x 2m hole almost blocks the route. A small passage skirts the pit to the right leading to a sloping 7m climb down in a tube to a further climb which becomes too tight.

The 22.7m deep pit hades to the northwest and the base is reached below some jammed blocks. Holes to the west on the descent have been only partly investigated. At the bottom, a small stream emerges and sinks in wet weather, a narrow rift chokes and all routes appear to close in.

Most of the draught appears to come from a very small hole in the wall of the narrow rift.

Reference: card; anon., 1996a (Easter logbook); anon., 1997b (logbook); anon., 2023b (Easter logbook)
Entrance pictures : 1996 and 2023
Underground picture(s):
Detailed Survey : 1:500
Line Survey :
On area survey :
Survex file : yes (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.)