This festival of the Tay ethnic group, also called " Inviting the Lunar Mother Festival", is celebrated in Dong Khe region. It takes place at the beginning of spring and lasts for 10 to 15 days. All families gather to pray to the Moon Mother for good things, a plentiful harvest and healthy cattle.

The lively atmosphere of the festival is a combination of celebrations and mysticism. Numerous activities are organized such as cock fighting, top spinning and Yen playing. Slong Hai, in which people see the Moon off to Heaven, takes place in the open field.
 

Date: the 2^nd to 30^th of the 1^st lunar month.

Long Tong festival is celebrated by the Tay-Nung ethnic groups to start the new harvest. At the beginning of the festivities, the village patriarch reads a ceremonial speech, while an older experienced farmer symbolically ploughs the rice field. The festival includes lion dancing, throwing con balls to determine predestined love, playing Chinese chess, swinging and singing.