Introduction to the Sunxi River: The Sunxi River originates from the Jinding Mountain in Xishui, Guizhou, and meanders through the Simian Mountains to the foot of the Putuo Mountain. It is the only river in Chongqing that is free of any industrial or ecological pollution. The Sunxi River that accompanies Zhongshan Ancient Town is as clear as a mirror, with sparkling waves, green trees on both sides, and densely covered with strange rocks, which is breathtaking.