Khong Island or Don Khong Island is the largest island and the seat of administration in the Si Phan Don riverine archipelago located in the Mekong River, Khong District, Champasak Province, southern Laos. The name is derived from the mega Mekong River that spreads itself out, choosing hundreds of routes and forming a vast area of river islands, possibly 4000 of them (Si Phan Don means 4000 Islands in Laos)! There are 3 main tourist islands to visit within the 4000 islands: Don Khong, Don Det, and Don Khon.
A morning drive takes us 140km the city center to the southernmost part of Champasak province, along the border with Cambodia. Here, the Mekong River spreads to a width of up to 14km during the rainy season, forming hundreds of islands and islets. The larger islands are inhabited with the largest one, Don Khone, even having an old disused 5km railway. The river cannot be navigated south of Don Khone because of the Khone Falls. These waterfalls are made op of the smaller Samphamit Falls and the larger Khong Phabeng Falls: the biggest in Asia, and maybe the widest in the world. Near the falls the endangered Irrawaddy dolphins can be found. Lunch is at a local restaurant before being driven to town.