Despite being on the same level as Cat Beck trial and only about 500m away getting to this one is a real challenge, it opens out below the edge of the cliffs, a climb down would be very risky and the climb from below is challenging and covered in brambles already, later in the year gardening gloves and very thick trousers would be in order.

The difficulty of access is reflected in there being only empty beercan in the drift (regulars of this sort of thing will know you cannot usually move for them)
The drift goes into the cliff before reaching a T-junction perhaps 25m in.

To the right there is fair bit of collapsed roof which quickly leads to what looks like a purposefully filled face, the abandonment plan for this mine show the major continuation of the mine back towards the inland shaft to be in this direction

Turning around and going back to the left at the T-junction there is a much longer section of drift, which has a slight dog-leg

It continues for about the same distance again after the dog-leg at which point there are some pretty large roof-falls after which the tunnel looks to come to an end (although I didn’t fancy climbing over as there were large cracks in the ceiling)
 

Here are a couple of photos from the entrance.