It is National 3A Scenic Area. It is located at Youxi Town. The   area covers an area of 80 square kilometers. It meanders 35 kilometers long.   Here, you can take such entertaining programs as traveling across the Canyon,   grass skiing, Canyon fishing, and so forth. The military drifting, crowned as   the First Drifting in East China, which is four kilometers long and comprises   of more than 50 rapids, is the first drifting with a military theme in   Yangtze River Delta. The drop between the upper reach and lower reach reaches   183 meters, and the drop of single fall reaches 10 meters.