Watch: Sid Perou’s Historic Beneath the Pennines Series

Step back to 1976 for a visit into the backbone of England in this five-part series, titled Beneath the Pennines, which was recently uploaded to YouTube.

Filmed by acclaimed cave videographer Sid Perou, the videos feature Pippikin Pot, Alum Pot, Lancaster Hole, White Scar and Dow Cave.

[via YouTube]