Aillwee Cave – the Burren underground
Ballyvaughan, clare
Aillwee Cave runs a 45-minute guided tour through more than 600 metres of passage carved by glacial meltwater, reaching 90 metres below the Burren limestone, with the skeletons of an Ice Age brown bear found here in 1976. Above ground there's a birds of prey centre, the Burren Gold cheese farm shop and a woodland walk over Galway Bay.