Eyup
Not really Baggers, but might be worth a look,
Tony Buckley, John Parker and others dived in Berton Pingles Pipe at the bottom of the shaft in the early seventies
I was told there were three sumps, two led to air space and the other one led to a T junction with a very strong flow of water in the cross passage, I dont think they dived downstream ? but upstream led to a wall partially obstructing the passage with the continuation visible beyond,
It might be complete bollocks but might be worth a look considering the proximity to Bagshawe