Clare is a county in western Ireland with terrain ranging from rolling countryside to craggy Atlantic coastline. The Burren, a uniquely rocky wilderness area, shelters Stone Age monuments and ancient churches, and atop the 213m-high Cliffs of Moher, O’Brien’s Tower offers sweeping ocean views.. Outside the gateway town of Shannon, 15th-century Bunratty Castle and its folk park reenact medieval-era banquets.