Discovered in 1983 and thought to be over 1 million years old Crag Cave is a magical wonderland of stalagmites and stalactites. It is an all weather visitor attraction located in Castleisland, 2km off the N21.

The cave is renowned as one of the finest examples of a limestone cave in Ireland. Etched over time into a natural wonder, Crag Cave offers an amazing view of how a cave is formed. See incredible examples of pillars, stalagmites, stalactites, flowstone and underground water channels.

In the 1980’s a hydrologist Professor John Gunn from UCC mapped a part of this cave system. At the northern end of where he mapped there was a pool, or sump. The Professor felt there was more of the cave to be found beyond this pool, so in 1983 he invited a Welsh cave diver called Martin Farr to explore the sump. The dive turned out to be a surprisingly short one. A few minutes later he emerged and when he shone his flashlight in the total darkness he was thrilled. He was the first human to enter these caverns.

Crag Cave offers a comprehensive group visit including full guided tours with trained guides. Schools and universities are particularly welcomed with unique packages on offer, work sheets and documents for primary and secondary schools. The cave centre offers a restaurant with delicious home cooking and an extensive gift shop.

The cave centre is also home to Crazy Cave: the 'Kingdom's' number one house of fun! Crazy Cave is an indoor adventure centre suitable for children from 0 - 12 years. It is a three tiered play system with mega astra slide, cannon guns, spiral slides, crazy maze and lots more. There is also a separate toddler, baby and sports area. The play area is priced separately and children must have adult supervision at all times. Introductory leaflets are available in French, German, Spanish, Dutch and Italian.