County Clare, Éire (Republic of Ireland); the Cliffs of Moher. The Cliffs of Moher are located at the south western edge of the Burren region in County Clare, Ireland. They rise 120 metres (390 ft) above the Atlantic Ocean at Hag's Head, and reach their maximum height of 214 metres (702 ft) just north of O'Brien's Tower. The cliffs receive almost one million visitors a year