The Top 10 Sexiest Hotel Spas

The 50,000-square-foot neoclassical Spa Grande is the biggest in Hawaii -- and one of the top-rated in the U.S., thanks in large part to its extraordinary baths. They include five aromatic pools, a Japanese furo bath, cascading waterfall, Roman hot tub, and Swiss jet shower. The spa offers more than 100 treatments, including locally inspired signature therapies like the Pala'au Journey ($225 for 80 minutes). Use of the facilities is $55 for two hours (or free with a treatment)-- more than most spas charge for a whole day.

The 9,000-square-foot Remede Spa boasts beautiful facilities, an extensive service menu, and a serene 24-hour indoor pool complete with poolside drink and food service. For just $15 a day, all hotel guests can use the whirlpools, steam rooms, and saunas, plus relaxation rooms that serve chocolate truffles and champagne.

The Mandarin Oriental's 27,000-square-foot, two-story spa features 27,000 square feet, 17 treatment rooms, relaxation lounges, steam rooms, a hammam, a Vitality Pool with views of the Strip, a salon, and a separate Chinese Foot Spa for pedicures. Facials, massages, and body treatments range from $180 to $330. It's a small spa by Vegas standards, but one of the most decadent.

The Lapis spa sits between the pool and the beach and looks like a shiny sapphire dropped from the sky. At 40,000 square feet, that's a pretty big rock. A $40 spa pass gets you into the locker rooms, Jacuzzis, cold pool, steam room, and sauna, which are gracefully laid out in a large, concrete subterranean lair.

This gorgeous spa, with Asian accents and fresh orchids throughout, offers a full range of treatments, from manicures to massages. A 50-minute massage runs over $200, and most treatments are over $300. But if you purchase a spa treatment, you also get access to Experience Showers, an Amethyst Crystal Steam Room, and a Vitality Pool. (Only guests staying in suites have free access to these facilities; other guests can pay $50 per stay to use them.) For the ultimate in luxury, guests can book a private, 650-square-foot VIP spa suite that replicates an Asian-style home and has its own fireplace, elevated bath, steam shower, and dual massage beds.

Spa-de-Vie is a destination unto itself. In addition to a huge range of massage therapies and face and body treatments, the spa plays host to the hotel's well-equipped fitness center and beautiful indoor pool, which you do not have to pay extra to use. Spa treatments range from a basic deep-tissue massage ($150 for 50 minutes) to the "Ultimate Day of Luxury," which costs -- wait for it, wait for it -- $795. There's even a kids' spa menu, with specials like the "Strawberry Ice Cream Pedicure" (which does not, rest assured, involve softening callouses with strawberry ice cream).