This is the biggest traditional festival of the year of ethnic minorities in Ham Yen district, which is held on the 9th of January (lunar calendar) every year at Dong Tien National Scenic Landscape Area in Yen Phu Commune with the wish a year of favorable rain and wind, bountiful crops and promotion of traditional agricultural products. The part of the ceremony includes sacrifices at the communal house of the village emperor, procession to offer incense to Dong Tien and spread fortune for visitors near and far to have good luck.

This is the biggest traditional festival of the year of ethnic minorities in Ham Yen district, which is held on the 9th of January (lunar calendar) every year at Dong Tien National Scenic Landscape Area in Yen Phu Commune with the wish a year of favorable rain and wind, bountiful crops and promotion of traditional agricultural products. The part of the ceremony includes sacrifices at the communal house of the village's emperor, a procession to offer incense to Dong Tien and bring luck to visitors near and far. The festival becomes more exciting by having more attractive activities such as: Visitors will enjoy the unique culture through traditional festival customs, folk songs, cultural activities... In addition, the festival also features folk games and ethnic sports such as: playing human chess, blindfolded to catch goats, spinning, volleyball and goat fighting...; In addition to enjoying the magical beauty of Tien Cave, visitors can also participate in climbing games, dancing the Mong flute, painting landscapes...

At the Tien Dong Festival, visitors also have the opportunity to attend the Country Fair with famous products of the district such as: Ham Sang oranges, essential oils, soap made from oranges; Cham Chu wine on Bay Deo mountain of Dao Tien people, Minh Huong commune distilled from the yeast of Cham Chu forest leaves; sipping dried buffalo meat in Yen Phu commune, a specialty made from Minh Huong gourd duck; Lam rice from glutinous rice, eight fragrant rice of Phu Luu, Minh Huong; Nhan Muc's specialty field carp; mistletoe wine of the Red Dao people in Minh Khuong commune…; Visitors can also buy precious medicinal herbs of ethnic minorities in Bach Xa and Minh Dan communes, forest honey in Yen Thuan, Minh Khuong, Bach Xa, and Thanh Long communes..; croissants, cilantro, pickled pork, brocade...as gifts.

Tien - Ham Yen Cave Festival has contributed to preserving the traditional beauty and cultural identity, is an attractive destination for tourists, experiencing life and learning about the land of people here every spring. .