Ancestral death anniversary of Hung Kings, in other words, Hung King Temple festival has become one of the greatest national festivals in Viet Nam for a long time. Every year, when the third lunar month comes, all Vietnamese citizens head for Nghia Linh Mountain, Hy Cuong Commune, Lam Thao District, Phu Tho Province in commemoration of Hung kings whose regime was an impressive, brilliant and outstanding start for establishing Viet Nam as a sovereign nation.Hung King Temple festival is annually held from 8th to 11th of the third month in lunar calendar with the main festival day falling on 10th on which Vietnamese working people are given the right to have a day off. Like other festivals in the northern part of Viet Nam, this festival includes two parts: the incense-offering ceremony and the recreational activities.