3105: cave
San Antonio 30T 445457 4801115 (Datum: ETRS89. Accuracy code: G) Altitude 102m
Length 150m Depth 15m
Area position

Updated 25th September 2014

   Entry to this site is possible from the north side: 2 sides of the shakehole are cliffs. A short dig allowed entry by the side of a large boulder, giving access to a large breakdown chamber under the 2 cliffs. A downstream passage with a strong outward draught can be followed down a climb to a point where it splits in two. One route leads to a choke which would be difficult if not impossible to dig, whilst the other route is currently blocked by a stal column. Both these passages draught out.
   In July 2014, a downward exploration of the boulder choke in the entrance chamber was undertaken, but further progress will require careful digging. Two bolts have been placed in the "big rift beyond the entrance" to ease climbing in and out. An area beyond further awkward climbs was examined and there appears to be more passage than the 2008 sketch (below) suggests - similar horizon and similar features to Regato, nearby, and Cueva Laberinto. The site should be surveyed.

Reference: anon., 2008f (autumn logbook); anon., 2014c (summer logbook)
Entrance pictures: yes
Underground pictures : autumn 2008 : summer 2014
Video :
Detailed Survey :  sketch of the downstream area
Line Survey :
On area survey :
Survex file :