| The southernmost of Thailand's Andaman Sea resort islands, Koh Lanta Yai, an hour by speedboat from Krabi, is still undeveloped and therefore remains largely the preserve of backpackers. There is one fine five-star resort, The Pimalai ( www.pimalai.com); but somewhere between that and the hostel option is Costa Lanta (00 66 75 618092; www.costalanta.com), which has a very stylish pool and 22 beautifully designed, open-box beach bungalows which cost from 3,900-6,700 baht (about £55-£90) including breakfast and service |