Celtic traditions inspire the circular garden at Ireland's latest destination spa, Monart (near Waterford; 353-53/923-8999;; doubles from $420). Guests at the original 18th-century brick manse are treated to therapies as tasty-sounding (green-coffee wraps, caviar masks) as the restaurant's organic menu. • On the Atlantic coast, Irish-born designer Clodagh drew from indigenous elements (stone, bronze, grass) to create a natural haven for the White Horses spa, opening next month in the 47-suite Lodge at Doonbeg (County Clare; 353-65/905-5600;; doubles from $320). Treatments—such as hot stone massages with basalt from the Giant's Causeway—take their cue from the outdoors.