The Burren, Irish for "gray rocky place," is 50 square miles of great irregular slabs of limestone with deep cracks. Located in County Clare, this humid, eerie moonscape is a natural rock garden, where plants native to the Arctic thrive next to subtropical flora.

Beneath the scarred surface are spectacular caves and streams.

There are a number of dolmens or prehistoric gravesites in the area. The most famous being Poulnebrone Dolmen.

Folk legends associated with the Burren say its holy wells can cure bad vision and its caves are home to ghostly horsemen. It is also reputed that mysterious lakes appear and disappear there, taking with them maidens who have been turned into swans.