Every year, after the harvest and when people's lives are stable, the Co Tu ethnic group in A Luoi district joyfully prepares for the Tac Ka Coong festival, a sacred and special traditional festival. This is not only an occasion for the Co Tu people to express gratitude to nature and the gods but also an opportunity for the community to unite and affirm their cultural identity.

Tac Ka Coong Festival is a celebration held by the Co Tu ethnic people to offer thanks to the gods of mountains, forests, rivers and streams within the village, for bestowing upon their descendants a life of warmth, happiness, prosperity, bountiful harvests, and good health.