506 Bird's Nest Cave
San Miguel VN57419685 Alt. 96m  Length 54m + 20m unsurveyed

Obvious hands and knees height entrance behind a tree. The passage narrows to a rift and opens out in a chamber. This closes down to the left. Down on the right, two routes unite at a hole in the floor down which is 20m of unsurveyed rift passage with no extension possibilities.

Reference: anon., 1995a (Easter logbook); material in file
Entrance picture :
Underground picture(s):
Detailed Survey : 1:500
Line Survey :
On area survey :
Survex file :