Detian waterfall is located in Detian village, ShuoLong Town, Daxin County, Chongzuo City, Guangxi Zhuang Autonomous Region. It is located in the upper reaches of Guichun river at the border between China and Vietnam. It is the largest transnational waterfall in Asia and the fourth largest in the world. It is magnificent and connected with the nearby Banyue waterfall in Vietnam.