Dongying Introduction: Dongying City is the central city of the Yellow River Delta. It is the main battlefield and core area of ​​the Yellow River Delta Efficient Ecological Economic Zone. It is also the place where the Wanli Yellow River enters the sea and is the youngest city in the Republic. Dongying City is located in the Yellow River Delta in northern Shandong, with a total area of ​​7923 square kilometers. When Tang Taizong was in the Eastern Expedition, he once camped here and set up Dongying and Xiying. Dongying Tourism: Dongying City has unique tourism resources. Dongying National Nature Reserve is the most complete, broadest and youngest wetland ecosystem in the temperate zone of the earth. It is one of the most valuable and characteristic tourist landscapes in the Yellow River Delta. The main attractions in the south include Sun Wuyuan, the Southern Song Dynasty Hall, Baitaitai, and Fujia Site. The northern part of the Yellow River is a modern delta plain, which is magnificent and full of wildness.