Bangioc Waterfall on the Quy Xuan River is located in Dam Thuy Commune, Trung Khanh District, Cao Bang Province, nears the Vietnamese-China border. The waterfall falls thirty meters. It is separated into three falls by rocks and trees, and the thundering effect of the water hitting the cliffs can be heard kilometers away from Trung Khanh.
The Quy Xuan River rises from China flowing into our country in Po Peo (Ngoc Khe Commune) and to communes including Dinh Phong and Chi Vien. When it reaches Dam Thuy Commune of Trung Khanh District, the mild river circles around Comuong mountain bottom and flows to rice fields of Dam Thuy towards the large maize alluvial plain of Gioc village. Here, the flow divides into many branches and lowers its flow to creat Bangioc Waterfall.