Guided tours, lasting 30 minutes, allow you to observe beautiful caverns, bridged chasms, underground waterfalls, weird mineral formations and the hibernation chambers of brown bears which have been extinct in Ireland for centuries. Facilities include a restaurant, craft shop, information desk and outside and 'The Hazelwood' crafts village. This stunning creation of nature was formed by the melt waters of a prehistoric ice age. The cave, carved out of limestone, cuts into the heart of the mountain.