Imported post
I've dived Stybarrow Crag a few times but never managed to find the cliff face. There is good parking in the lay-by opposite and you can walk straight in off the shingle beach and it slopes off quite quickly once you get past waist deep. This is the deepest site in the lake and you will need a good torch.
There is more info at FreshwaterDiver.com
Freshwater Diver
Hope this helps
Simon