Odon-Tsu (harvest festival in the Ogou region) is celebrated by Ifè (Anna) of the prefecture of Ogou. Odon means Festival and Tsu is the god of the land, the mystic power that fosters the growth of the cereals in general and the tubers of yam in particular. This festival which takes place on the last Saturday of July in Atakpamé is marked by spiritual and traditional ceremonies dedicated to the nourishing earth.