In reply to KeenFisherman:
There is a ledge at the entrance to Blackers Hole below the routes Gianslayer and Cold Empty Gun. However, to actually get into Blackers you need to do a tricky sea level traverse into the back of Blackers and onto the beach.
I think a fixed rope, along the line of the traverse, is in situ at the moment, but that can vary. To get into the back of Blackers and onto the beach needs calm seas. it would be quite exciting doing the traverse when the water is rough.
TJB.