The river flows 200 kilometers in Yongshun County. An area of 4,000 hectares along the river has been opened for tourists. Major scenic spots include Eight-Scene Cave, Small Dragon Cave,natural cliff side murals, Golden-Star Gorge, Fairy Gorge ,Line of Sky, Jumping Monkey, Yuanyang Gorge and Laojun Gorge. Tourists can enjoy rafting on Si River, a tributary of Mengdong Rirer. The river flows along a narrow valley and the water is swift. It is a great adventure to drift on it.