If you really want to feel the sand between your toes, head to Koh Samui. Upscale resorts sit alongside the traditional Thai beach shacks, where fine stretches of white sand are lined with comfortable loungers and sizzling seafood joints where you’ll find a plate of freshly-caught goodies for a handful of loose baht. Koh Samui still attracts its fair share of backpackers but it has grown up and now lures a new type of traveller to its idyllic shores. Prepare to be seduced by the spas, enthralled by the immersive experiences and won over by watersports.