County Clare is known for attractions like Ennis, the county town located on the River Fergus; the Cliffs of Moher, one of Ireland's most popular sights; Kilkee, a traditional holiday destination on the bay perfect for water sports; The Burren, a unique karst landscape with limestone pavements and Arctic/Mediterranean plants; and the Aillwee Cave, the most famous of the ancient caves beneath the Burren that is open to the public.