The Loy Krathong festival is celebrated all over Thailand as well as in other parts of Southeast Asia to mark the end of the rainy season. Observed on the day and night of the full moon of the 11th lunar month—usually November—it is a way of honoring the spirits of all waters in gratitude for the fecundity that they bestow on the earth. 

Typically, krathong are made of banana leaves, which are topped with flowers, candles, and incense sticks. Local civic and municipal organizations create very large krathong, often in competition for the best float in parades that are held throughout the country.