Hainan Island, China
The operators of this four-unit treehouse resort, which has a sister site in Maui, are quick to warn potential guests that their accommodations are "not for the fussy." Maybe so, but they're perfect for environmentalists who want a fresh-air experience that doesn't involve tented shelter. Located in the South China Sea, the property sits adjacent to a 5,000-acre Buddhist park rife with pagodas, temples, and manicured gardens. The Big Beach in the Sky treehouse sleeps six and is accessible only via suspension bridge; the Hawaiian Hale Hotel Treehouse, meanwhile, is ideal for larger parties: It sleeps up to 20 and is just two minutes from the beach.
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