Bon Om Touk (Khmer: បុណ្យអុំទូក, IPA: [bon om tuːk]), or the Cambodian Water Festival,
is a Cambodian festival celebrated in November and marks a reversal of the flow of the Tonle Sap River. Every town and province joins in with the festival but the biggest celebrations take place in Phnom Penh with boat racing along the Sisowath Quay. For three days, workers from every province join with the city’s residents to celebrate by night and day. The festival lasts for three days, and commemorates the end of the country’s rainy season, as well as the reversal of flow of the Tonle Sap River. It includes boat races and concerts, and attracts several million people each year. source is From Wikipedia, the free encyclopedia
More than 400 boats, propelled by precision-trained oarsmen, take part in the annual boat race, the highlight of the Water Festival or Bon Om Touk. This is one of the major events in the Kingdom which attracts multitudes of people from the various provinces to the capital Phnom Penh.