Beneath The Pennines: The Lancaster Hole

The golden age of cave exploration falls well within living memory. Veteran caver Jim Eyres, of the British Speleological Association, relives the last great Pennines discovery - the Lancaster Hole - which allowed access to miles of river-ways, caverns and grottos beneath the western dales.

• Director: Sid Perou
• Cast: Jim Eyres, George Cornes, Ron Bliss, Ken Cooper