Many fans of ‘The Beach’ might assume that no idyllic, isolated Thai beach truly exists anymore, but you’ll be pleased to know that there are some hidden-ish shores, if you really look for them. Koh Lanta in the Krabi province is by no means undiscovered. However, due to its remote location (think planes, trains, automobiles and then maybe a ferry), you can still find unspoiled stretches of white sand beach, particularly on the south end of the island. Hire a bike and get away from the tourists on Long Beach for virtually uninhabited spots south of Relax Bay.