Holy Island is a small island just off the west coast of Anglesey, North Wales, which is rich in archaeology of all periods. Between 2006 and 2010, archaeological excavations in advance of a major Welsh Government development site, Parc Cybi, enabled extensive study of the island’s past. Over 20 hectares were investigated, revealing a busy and complex archaeological landscape, which could be seen evolving from the Mesolithic period through to the present day. Major sites discovered include...