Laid-back and less developed than other resorts on Thailand’s Andaman coastline, Khao Lak combines long stretches of white sand with jungle scenery. It’s also the gateway to the Similan Islands archipelago, one of Asia's top scuba diving destinations, where underwater wonderlands brim with colorful coral, sea turtles, and tropical fish. Things to do in Khao Lak include exploring Khao Lak-Lam Ru National Park, with its secluded beaches and rugged hiking trails, and feasting on street food at Bang Niang Market, where tom yum goong (spicy shrimp soup) is the dish of the day.