This superb spa at The St. Regis Princeville Resort is indeed a House of Joy, as its Hawaiian name translates. Opened in 2009, the 11,000-square-foot Halelea Spa transports users to a place of tranquillity. The spa's 12 luxurious treatment rooms afford a subdued indoor setting outmatched only by the professional service. Take advantage of the dedicated couples' room and enjoy a taro butter pohaku hot stone massage. Follow that with a few hours sipping tea in the relaxation lounge, sweating in the sauna, and rinsing in an overhead rain shower. There is a qualified wellness consultant, and spa programs are inspired by Native Hawaiian healing rituals. You can find health, beauty, and inner peace at this spa, but expect to pay for it. www.stregisprinceville.com.