The boat racing festival called Boun Suang Heua  or Boun Xuang Heua (Lao: ບຸນຊ່ວງເຮືອ) or Loy Krathong (Lao: ລອຍກະໂທງ) is celebrated every year, particularly in Laos, usually in October, at the end of Buddhist Lent.
Origin of the tradition
The canoe race has existed for thousands of years. Daily life is greatly organized around the Mekong River and its numerous tributaries. Indeed, it was both a major means of transport and communication, but also a food source thanks to the fish.
Although today's canoe race is essentially a social, sporting and commercial event, it still remains associated with the naga, the protective river spirits of Vientiane, which, according to Lao beliefs, carry away the rice paddies and return them back to the water.