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+--- Thread: early british caving/diving documentry (/showthread.php?tid=6333)
early british caving/diving documentry - Hydro - 12-06-2015
if you have about 2 hours of time to burn, this is fairly interesting on early scuba and how it was used in caving.... mostly sump diving.
Part 1
Part 2
Part 3
Part 4
check out Sid Perou's other videos