At this earthy fasting-detox retreat, guests check in for days-long water, juice and/or herb fasts with massages. But non-dieters are also welcome for yoga (400B) or spa sessions, taking in traditional Thai, oil and deep-tissue treatments, plus signature Thaiatsu (Thai meets shiatsu) massages. Day passes (2000B to 2500B) include yoga and pool access. Atsumi runs health-focused Raw Cafe Phuket nearby.