Introduction to Dongda Daotu (Yiou Lake): It is located in the middle of the three seas, covering an area of ​​about 2,800 acres and a water depth of 3 meters. A variety of fish and shrimps naturally grow in the water. Famous for its fragrance, this is a world of birds. There are about twenty or thirty species of birds, including red, blue, and white. They fly around, sing leisurely, and reproduce here.