Just inside the wood north of #5410. A 2m crack goes into the NE face as forming a cave entrance, but the continuation is a spoil-filled slot only a couple of cm wide. It looks like it may be a fault/joint in line with the depression just over the south side of the track.

Reference: anon., 2024b (Easter logbook)
Entrance pictures : April 2024
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :