Built to satisfy an indulgent Japanese billionaire, this 50,000-square-foot spa makes others seem like well-appointed closets. Slathered in honey and wrapped up in the steam room (if you go for the Alii honey steam wrap), you'll feel like royalty. All treatments include a loofah scrub and a trip to the termé, a hydrotherapy circuit including a Roman Jacuzzi, furo bath, plunge pool, powerful waterfall and Swiss jet showers, and five therapeutic baths. (Soak for 10 minutes in the moor mud to relieve sunburn or jellyfish stings.) To fully enjoy the baths, plan to arrive an hour before your treatment. Free with treatments, the termé is also available separately for $55 for two hours. At times—especially during the holidays—this wonderland can be crowded.
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