When St. Patrick introduced Christianity to Ireland, some of the old magical rituals of the past were abandoned. This angered the Tuatha Dé Danann – the pantheon of celtic deities – who were masters of magic. In protest they used their magical powers to transform themselves into horses and they galloped to Kilcornan, where they hid for centuries in the Kilcornan caves.
Many years passed, until one day seven foals emerged from the caves. They were startled by the bright sunlight and bolted, galloping all along the edge of the cliff. Eventually, perhaps still dazzled by the sun, they plunged over the edge into the ocean to their deaths. The spot where they met their awful fate is now known as Aill Na Searrach, or the Cliff of the Foals.