Blue Peter

Episode 71

TV-PG
S17 • E71    May 21, 1981
Gaping Gill

Every year high in the Pennines local cavers build a dam to divert a stream and Britain's largest subterranean cave reveals its secret for just three weeks. Peter reports from 104 metres below the earth's surface at the bottom of Gaping Gill.

Where to Watch Blue Peter - S17 • E71

 

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