The huge tropical pool suites of W Retreat Koh Samui (02-639-0909, www.wretreatkohsamui.com) can be yours at the discounted rate of B18,000/night (down from B24,000) with breakfast as part of the resort’s low-season deal for Thai residents, applicable on two-night stays through Oct 31.
 
Use the time to also check out their newly adjusted spa treatments, which include a 60-minute hot-to-cool treatment of warm aromatic moor mud followed by a cooling water lily cream massage (B3,900) and a 60-minute Detoxi facial treatment (B3,900). Or combine them both in the Detox-Retox package at B5,900.