Yorkshire, Old Mother Shipton's Cave, Knaresborough (Scan from Oct 1989)

"Mother Shipton's Cave (or "Old Mother Shipton's Cave") is at Knaresborough, North Yorkshire, England, near to the River Nidd. Nearby is a petrifying well which is the oldest entrance-charging tourist attraction in England, open since 1630. The water of the well is rich in sulphate and carbonate[1] which is deposited as a ramp and screen below, and in which artefacts are "petrified" (encrusted) as a tourist attraction."
en.wikipedia.org/wiki/Mother_Shipton%27s_Cave