Roofed and walled in stone, this complex of passages is the largest and best-preserved of several mysterious underground tunnels associated with Cornish Iron Age settlements.
The purpose of such 'fogous' - a Cornish-language word meaning 'cave' - is unknown. Refuges, storage chambers or ritual shrines have all been suggested.Managed by The Trelowarren Estate. Free entry to the fogou. Entry to the rest of the estate is charged.
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