Time: From the 18th to the 19th day of the seventh lunar month.
Place: Chang Son Commune, Thach That District, Ha Noi.
Objects of worship: Water genie, and three gods who had merit of fighting Thuc troops: Tan Vien, Cao Son, Qui Minh.
Characteristics: Procession of water genie's votive tablet, wrestling, cock fighting, swinging, Chinese chess, to tom, water puppetry, a dao singing, cheo performance.