Shaliu River Scenic Area is located in the south of Gangcha County, Haibei Prefecture, Qinghai Province, and is named for the Shaliu River. The Shaliu River originated from the south foot of Sanszha Mountain, the first peak in Gangcha County, and the length is 95 kilometers. After flowing through the county, it is injected into Qinghai Lake. The basin area is 1320 square kilometers. Gangcha County Shaliu River Scenic Area is one of the best attractions in China to watch the wonders of naked moth tour. Every summer from June to July, Qinghai Lake carp reverses the current, and they are densely swarms, tracing the river to visit the Shaliu River, Buha River, Quanji River in Gangcha, fertilizing and ovulating. When passing through the shoal, the back fins surfaced, just like a thousand sails competing, and finally formed a strange landscape of dozens of miles of river "half river clear water half river fish" in the suitable place to lay eggs. The Tibetans living here have the "riding and wading in the water to trample on the fish", which is really a miracle of life interpretation. Every June and July, Qinghai Lake salmon reflow, very spectacular, half the river clear water half the river fish, watching the salmon reflow, it is best to the previous day in the mountains upstream without heavy rain, the river water is clear, the flow is not large.