Thailand offers wellness retreats at every budget and intensity.
Luxury medical-wellness ($500–$1,500/day): - Chiva-Som (Hua Hin) — Thailand's pioneering health resort, ~30 years operating, medical-led programs - Kamalaya (Koh Samui) — holistic wellness with monks, naturopaths, and stunning Gulf views - Amanpuri / Six Senses — luxury hotels with strong wellness programs as add-ons
Mid-tier retreats ($150–$400/day): - The Sanctuary Thailand (Koh Phangan) — long-standing detox and yoga retreat - Samahita Retreat (Koh Samui) — yoga + ayurveda focused - Wonderland Healing Center (Koh Phangan) — fasting and detox specialty
Detox / fasting: Multiple Koh Phangan-based programs offer water fasting + colonic hydrotherapy. Quality varies — research providers carefully.
Vipassana meditation (often free or donation-only): Wat Suan Mokkh near Surat Thani runs 10-day silent retreats — strict, monastic, demanding.
Best months: November–April. Avoid May–October if Koh Phangan/Samui (rainier) but Khao Lak / Hua Hin still operate.