Step into 1 million years of history and wonder at Crag Cave, Ireland’s most exciting show cave! At 3.82km long, Crag Cave is the longest cave in Kerry and the seventh longest cave in the Republic offering one of the finest examples of limestone cave formation in Ireland. Etched over time into a natural wonder, this 350m show cave offers an amazing view of how a cave is formed. Come and see the incredible examples of pillars, stalactites, stalagmites, flowstones, curtains and straws that have been meticulously forming over the last 15,000 years.