Six Senses Spa at Yao Noi, Yao Noi
Set amid fertile rice terraces, this spa's 11 thatched-roof villas, all doubles, give off a distinctly sexy and eco-conscious vibe. Elevated walkways link three open-air treatment pavilions overlooking a meandering stream with the other indoor, air-conditioned rooms. Organic chic inspires details here, from the raw-saffron walls lined with bamboo to the recycled-paper product packaging. Birdsong and running water provide natural accompaniment to the Holistic Massage ($127), which begins with a dry pressure-point massage on face and scalp, establishing a connection that is unbroken for 90 minutes as talented hands move gently over the body, in crisscross strokes (massages, $80ý$300).