in the past Thai people settled down and established their communities along the rivers. Rivers and canals were the main channel for trading and transportation. The way of life of Thais is, therefore, deeply influenced by the rivers. A few floating markets which still survive today are the heritage of such old way of life. Traditional fairs and events, in the same way, reflect the influence of the rivers upon people’s lives. The well-known Loy Krathong festival held annually in November when the river fills its banks is an example. Through Loy Krathong festival, Thai people thank and pay their respect to river and its sacred spirit for feeding them all year long.