Originally the Nu River winds down the mountains and valleys of Qinghai-Tibet Plateau from north to south, whereas when the Nu River flows near the Ridan village of Bingzhongluo Township, due to the barrier of the cliffs, the course of the river shifts from north-south to east-west direction, after the outflow of more than 300 meters, the river path is blocked by Danla Mountain, the river has to make a sharp U-turn from west to east again, forming an arc-shaped semi-circular path from north to west and then to south. Thus, the Nu River has to change its course for three times,forming three interconnected abrupt turns, therefore it becomes the No.1turn of the Nu River. The river surface has an elevation of 1710 meters above sea level, having a relative fall over 1000 meters comparing with the mountains along the banks of the river, looking from above, the N0 1 turn of the Nu River presents a U-shaped arc with steep terrain and extraordinarily magnificent scene, the whole scenario has a thunderbolt momentum and is nominated as a national level grade 1 attraction.
There is a small village called Kantong on the island.It is friendly, remote, and debonair.Every slack season or holiday，The people here go boating , go overhead cables over the river or sing and dance.The creek, still and soundless, is closed in by trees, hidden from the eyes of men.(Web editor:Zhang Yun)