If you're looking for a one-of-a-kind experience, this is your destination. Most treatments take place in outdoor, bamboo-floor hales (houses) surrounded by lava rock. Incredible therapists offer a mix of the old standbys (lomi lomi massage, moisturizing facials) and innovative treatments, many of which are heavily influenced by ancient traditions and incorporate local products. One exfoliating body treatment is self-administered in one of the outdoor saunas -- a great choice for people who aren't too keen on therapists seeing them in their birthday suits. Watsu therapy takes place in an amazing pool filled by the adjacent lava tube. Meant to re-create the feeling of being in a womb, the hour-long therapy is essentially an underwater massage. You feel totally weightless, thanks to some artfully applied weights and the buoyancy of the warm salt water. It's a great treatment for people with disabilities that keep them from enjoying a traditional massage. The aesthetic treatments on the menu incorporate high-end products from Epicuran and Emminence, so a facial will have a real and lasting therapeutic effect on your skin. The spa also offers a full regimen of fitness and yoga classes, as well as more mainland-style procedures like Botox and Restylane injections.