[chris_armstrong]

This is probably the highlight of a visit to an otherwise unremarkable English seaside town. The chambers are very old (even by English standards) and so unlike anything else medieval that is still around.

[madaxe_again]

18th century is not “very old, even by English standards”, it’s practically modern - these are almost certainly Georgian follies.

[chris_armstrong]

It was discovered in the 1800s, the shell grotto is much much older and probably built over a very long period of time