Phi Phi Islands are located in Thailand , between the large island of Phuket and the western Strait of Malacca coast of the mainland. The islands are administratively part of Krabi province . Ko Phi Phi Don meaning "island" in the Thai language ) is the largest island of the group, and is the most populated island of the group. although the beaches of the second largest island, Ko Phi Phi Lee are visited by many people as well. The rest of the islands in the group, including Bida Nok, Bida Noi, and Bamboo Island , are not much more than large limestone rocks jutting out of the sea.