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.

Hung Temple is the common name for the temple complex of Hung Kings located on Nghia Linh mountain in Phu Tho province. Standing on Nghia Linh mountain overlooking the four sides, we can see in the distance is the Hac junction, where Lo river merges with the Red River. To the left is the majestic Tam Dao range. On the right side is Ba Vi mountain, fading to visible green. Field, palm hill, tea garden, rich village, picturesque landscape, midland stretching before eyes. Here and there are scattered large lakes glistening like a mirror in the spring light.