Introduction to Yuanyang Lake: Yuanyang Lake is named after the many pairs of mandarin ducks swimming on the lake at the turn of spring and summer. Yuanyang Lake has a water surface of nearly 100,000 square meters and a water depth of 3 to 4 meters. It is a saltwater lake formed by the trickle of Shuidonggou all year round. Standing in the pavilion in the center of the lake, you can see the rugged desert, the distant peaks, the majestic Great Wall, and the sparkling lake water, which form a peaceful and peaceful scenery of the south of the Yangtze River, which is so beautiful.