Introduction to Guoshan Island: It borders the Yellow River to the west, Swan Lake to the north, and Canglong Lake to the south. A small river connects the Swan and Canglong Lakes to the east. From a distance, Guoshan Island looks like it is floating on the water. of a ship. The "Peony Garden" covering an area of ​​more than 40 acres on the island has more than 100 varieties in four categories: Central Plains Peony, Northwest Peony, Southwest Peony and Jiangnan Peony. Peonies bloom in April every year, and they are colorful and colorful.