Ko Phi Phi Don (, , ) is the largest of the islands in the Ko Phi Phi archipelago, in Thailand. Phi Phi Don is 9.73 km2 (3.76 mi2): 8 kilometres (5.0 miles) in length and 3.5 kilometres (2.2 miles) wide. Part of the islands are administratively part of Ao Nang in Krabi Province. It is the only island in the group with permanent inhabitants, although most are temporary workers servicing the tourist trade. Like the other islands in the archipelago, Phi Phi Don is a non-volcanic island largely made of limestone. It is almost separated into two islands, but a strand of flat land connects them. On this strand lies the largest settlement on the island, as well as most of the resorts. Villages Ban Laem Tong Laem Tong Ban Ton Sai Hat Yao 2004 tsunami More than 1,000 people died 26 December 2004 when a tsunami struck the island. Lohdalum Bay was hit the hardest, with the majority of the bungalows and restaurants along the beach destroyed. There is a memorial for those killed in the tsunami on the beach facing Lohdalum Bay. Every year there is a small memorial service where family members and friends come to pay their respects and talk about those they lost. A moment of silence is observed at the time the tsunami hit. There were three waves: the first one flooded Lohdalum Bay, the second destroyed all of the wooden buildings and the third and largest ruined stone buildings as if they were made of sand. The whole tsunami lasted for only three minutes (from 10:29–10:32) but it nearly destroyed the whole island. Environment Most of the Phi Phi Islands are in a protected marine reserve, part of Hat Noppharat Thara-Mu Ko Phi Phi National Park. But parts of Phi Phi Don are outside the park's jurisdiction, and under the jurisdiction of, and funded by, the Ao Nang Tambon Administrative Organisation (TAO). Its budget is based on the number of permanent, registered residents and takes no account of visitors. The island has very few documented residents. Most who service the tourist trade are registered residents elsewhere in Thailand. The number of residents, permanent and temporary, is dwarfed by the number of visitors. Thus the Ao Nang TAO allocates only about 170 million baht per year to the Phi Phis. Underfunding has contributed to serious environmental issues. Solid waste The Phi Phi Islands