Ban Gioc Fall is situated in Trung Khanh district in Cao Bang province nears the Sino-Vietnamese border. The echo of the falls can be heard kilometers away from Trung Khanh. - unduh di 4shared. Ban Gioc Fall is situated in Trung Khanh district in Cao Bang province nears the Sino-Vietnamese border. The echo of the falls can be heard kilometers away from Trung Khanh. disimpan di layanan berbagi-pakai file gratis 4shared.