Introduction to the first bay of the Nu River: The Nu River flows near Ridan Village, Bingzhongluo Township, Gongshan County, Yunnan Province. Due to the obstruction of the Wangqing hanging rock cliff, the flow direction of the river changes from north to south to east to west, and flows out After more than 300 meters, the road was blocked by Danla Mountain again, so we had to turn around again from west to east, forming a large semicircular bay here, which is the first bay of Nujiang River. There is a village in the center of the bay called Kantong Village.