Alice and Gwendoline Cave
The Alice and Gwendoline Cave is a limestone cave in County Clare, Ireland. It was first investigated by scholars in 1902. In 2016, a bear patella with possible butchery marks found in the cave was dated to the Upper Palaeolithic, which is potentially the oldest known evidence of human habitation in Ireland.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).