Guan Yin festival lasts 3 days and includes two parts: ceremony and festival. During Cau Ngu festival in Vietnam, the altar is decorated with colourful flags and other accessories for Cau Ngu festival in Vietnam. All family put the offerings on the altars. Fishmen decorate their boats with flowers and lanterns in Cau Ngu festival in Vietnam. The village chooses the group including the old, good men whose families do not have funeral to pray to heaven, god of the sea in Cau Ngu festival in Vietnam.
Because of the beauty of this place, the festival attracted many tourists come to Ngu Hanh Son. There has the Tug of war-one of the traditional games. With many cultural-sporty activities, Guan Yin festival contributes to respect and preserve the national character.