For generations, the ethnic communities of Hoa Binh province, particularly the Muong people, have preserved vibrant festivals deeply intertwined with the region’s geography, nature, and social traditions. These celebrations enrich Hoa Binh’s spiritual life and cultural identity, reflecting both folk beliefs and the intermingling of ethnic customs. Many of these festivals have endured the test of time, passed down through generations and continuing to thrive today. Among them, the Khai Ha (Going Down to the Field) festival stands out as one of the most significant events of the Muong ethnic group.