Connected to the river and the sea, Dandong, located in the east of Liaoning Province, on the shore of the Yellow Sea, and beside the Yalu River, is a “hero city” in the War to Resist US Aggression and Aid Korea. It is the largest and most beautiful border city in China, the starting point of the eastern end of the Great Wall, the northern end of thousands of miles of sea border, and the starting point of the most beautiful border highway 331 National Highway. Dandong boasts picturesque scenery and pleasant climate, with no scorching heat in summer and no severe cold in winter. Its average annual temperature ranges from 7.1 ℃ to 8.9 ℃, and it boasts many honors such as National Excellent Tourism City, National Climate Livable City, National Garden City, National Health City, National Water Ecological Friendly City, Top Ten Livable Cities, and Top Ten Elderly Care Resorts. The Dandong “Three Beauties” border cultural brand between China and North Korea, with the theme of visiting beautiful mountains and rivers, tasting delicious food, and appreciating beautiful songs and dances, is well-known.