Phi Phi Islands are a group of limestone islands in southern Thailand, located in the Andaman Sea between Phuket and Krabi. Known for their dramatic karst hills, turquoise sea, white-sand beaches, and vibrant marine life, Phi Phi is one of Thailand’s most iconic tourist destinations. The islands are accessible only by boat, and tourism here revolves around snorkeling, diving, island-hopping, scenic viewpoints, and coastal village life, especially around Phi Phi Don, the only inhabited island.