Ancient Irish cave art pushes human arrival back 5,000 years via Wales link

An international research group, coordinated by Dr George Nash, has discovered eight caves in southwest Ireland bearing rock art that dates back to at least 15,000 years ago, dramatically earlier than the former oldest evidence of humans on the island. By feeding characteristics of Welsh cave sites into a computer algorithm, the team identified 28 candidate locations, of which eight yielded engravings, ochre and charcoal paintings, and fingertip line work.

They propose that a now-submerged land bridge linking modern Pembrokeshire with Rosslare allowed groups of hunter-gatherers, following herds of mammoth, reindeer and other megafauna, to settle the Irish landscape. Nash emphasizes that the absence of earlier finds was due to limited searching, not lack of occupation. The researchers, including caving specialist Shane Diffily and digital-mapping consultant Darren Lee, caution against revealing exact cave locations to prevent vandalism. They anticipate further discoveries across other Irish counties, expanding understanding of the north-west European frontier.