Entrance to Halliggye Fogou
Introduction
The photograph on this page of Entrance to Halliggye Fogou by Trevor Harris as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Trevor Harris Taken: 13 Apr 2009
A fogou is a middle iron age underground passage/chambers, which only occur in Cornwall. They were built underneath settlements but the purpose is unknown - could be for refuge, storage or ceremonial. This one is apparently a great example, more extensive than most and is open to the public - when the horseshoe bats aren't hibernating. Well worth a visit, but you will need a torch.
