Cambodian Water Festival
The festival marks the changing of the flow of the Tonle Sap River and is also seen as thanksgiving to the Mekong River for providing the country with fertile land and abundant fish. The festival marks a reversal of the flow between the Mekong and Tonle Sap rivers. Due to the amount of water deposited during the rainy season, the Tonle Sap river becomes so swollen with water that it reverses the direction of its flow and flows upstream to Tonle Sap lake. In a remarkable phenomenon, the Tonle Sap River earlier reverses its course as the rainy season progresses, with the river flowing "upstream" to Tonle Sap Lake. Then as the rainy season tapers off, the river changes direction once again as the swollen Tonle Sap Lake begins to empty back into the Mekong River, leaving behind vast quantities of fish.
They might be arrange activities on the rivers such as boat racing, concerts, fire work, parade and displays of achievement of each ministry of Cambodia Government.