Ultimate Outdoor Spa Experiences

These nine hotels offer top-notch treatments in the most beautiful, and natural, settings around the world.

Courtesy of Dorado Beach, a Ritz-Carlton Reserve
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Spa Botánico at Dorado Beach, a Ritz-Carlton Reserve, Puerto Rico

Designed as an open-air enclave, the five-acre Spa Botánico boasts soaring 32-foot ceilings, a reflection pool and a pineapple garden. There’s no better way to revel in these surroundings at the 115-room Ritz-Carlton Reserve than with a massage in one of the two Treehouse treatment areas, built among the resort’s kush treetops. From this luxe perch up in the air, the sounds of swaying trees and crashing ocean waves are the perfect accompaniment to a gentle rubdown in a hammock ($225) or a more rigorous Thai-style stretching treatment on a padded floor mat ($325). Rooms start at $700; 100 Dorado Beach Dr.; 787-626-1100; ritzcarlton.com.