Phi Phi Islands, Thailand

The Phi Phi Islands form an archipelago of six islands in Krabi Province between Phuket and the Straits of Malacca, with roughly 2,500 residents living primarily on Koh Phi Phi Don. Koh Phi Phi Leh features vertical limestone cliffs framing Maya Bay, protected within Hat Noppharat Thara-Mu Ko Phi Phi National Park. Koh Phi Phi Don centers on a narrow sand isthmus flanked by Ton Sai Bay and Loh Dalum Beach. Hiking trails ascend to the Koh Phi Phi Viewpoint at 186 meters for panoramic views across the island's twin bays. Travelers hire longtail boats to snorkel coral reefs, explore Viking Cave, and visit secluded limestone coves.