Burgh Island

Burgh Island is a tidal island on the coast of South Devon in England near the small seaside village of Bigbury-on-Sea. There are several buildings on the island, the largest being the Art Deco Burgh Island Hotel. The other buildings are three private houses, and a pub, the Pilchard Inn.

Archaeological discovery of tin ingots at the River Erme estuary wreck show that the local area was a significant tin trading port in ancient times; it is unclear whether the ingots date from the Iron Age or Sub-Roman periods, however this discovery so close to Burgh Island has drawn comparisons with Diodorus Siculus's 1st century BCE text, more often associated with St Michael's Mount in Cornwall:

Wikipedia