Koh Rong (Khmer: កោះរ៉ុង, also romanized as Kaôh Rōng or Kos Rong), is the second largest island of Cambodia. The word Rong might refer to an old term for cave or tunnel (រូង - roong in Khmer), although some islanders say Rong refers to a historical person's name. It can also be referred to the old Khmer word for shelter, e.g. shelter island.
Located in Commune (Sangkat) No. 5, or Sangkat Koh Rong of Mittakpheap district in Sihanoukville Province about 25 kilometers off the coast in the Gulf of Thailand, the island has an area of approximately 78 km2 and 43 km of its entire coastline of 61 km are beaches. Four village communities exist on the island: Koh Tuich, Doeum D'keuw, Prek Svay and Sok San. In recent years the island has become home to an increasing but still moderate number of foreign-run guesthouses and bungalow resorts. As the island's South-Eastern tip around Koh Tuich Village is the point of arrival it has developed into the island's largest settlement center. in absence of even the most basic infrastructure, transport by boat is required to all settlements and holiday resorts, which are scattered all over the many beaches.
Koh Rong island is a relatively new commune, only established in 2000. In order to boost development, Koh Rong has had a land concession issued by the Cambodian government. A Cambodian consortium, the Royal Group has been granted a 99-year lease. In 2008 it has revealed plans to build "Asia’s first environmentally planned resort island."
The island has also played host to the popular reality program, Survivor. In 2012, a special All Star season of the French edition of the program; Koh-Lanta, was filmed on Koh Rong, near Sok San village. Production returned to the island in 2013 for another season, however it ended abruptly after the death of a contestant. More recently, American edition of Survivor is produced Season 31 and 32 of the program on Koh Rong over the course of four months between March to July 2015. The sixteenth edition of Expedition Robinson, Sweden's Survivor, was also filmed on Koh Rong.