The island of Koh Phangan is a magnet for ravers, attracting ferryloads of backpackers to its full-moon parties, but Anantara - its only five-star hotel - is far removed from that scene.
The spa is set amid a manicured mass of jungle and tropical flowers, with teak treatment huts jutting from the rock face as if sprouting organically.
All treatments begin with a soothing herbal tea in the 'reception' area (reached via umpteen stepping stones across a pond) and include a seriously good head and shoulder massage.
Choose the Rasananda Island Bliss package - a floral oil massage with clever cooling compresses, which helps relieve tense muscles and sun-scorched skin. Or, for more than three hours of pampering - including a floral foot ritual, Thai herbal steam, coconut scrub and Thai massage - take the immersive Journey Of Siam.
WOW FACTOR: Post-pampering, hop into the outdoor herbal bath and then wallow about in the tropical steam cave.
GO: The Turquoise Holiday Company (www.turquoiseholidays.co.uk) offers seven nights from £1,270 per person, B&B. Includes flights and transfers.
FLIGHT TIME: 13 hours via Bangkok