Khone phapheng Waterfall Khone phapheng Waterfall is in Champasak province the southern part of Laos. It is the widest waterfall in the world. It falls into "Li Phi" waterfall, a place where the Mekong takes a deep before continuing its course past Cambodia and Vietnam into the South China Sea. This amazing natural sites is very beautiful during the months of December to March when the water of the Mekong is clear tinted emerald green. Down the Mekong River not too far from the Khonephapeng waterfall, there is a rare freshwater species called the Irrawaddy dolphins (or Pah Kha in Lao language). The Irrawaddy dolphins are a major attraction for tourists, as they are only found in this part there were around a thousand of them, but as tourism industr was of Asia. Before not promoted in this part of Laos the Inrawaddy dolphins did not expose to people from other places. Local people believe the irrawaddy dolphins are sacred fish because they are mammal. According to the life style of local people (Ban Veunkham) that use the net to catch fish in the Mekong River, the Irrawaddy dolphins were occasionally