Emerald Park is located in Hebei District, Tianjin, in fact, is a section of the Crescent River. It is spring season, although everything has not recovered, the trees and flowers in the park have not yet begun to sprout, but the sun is shining, the temperature has risen, the ice in the river has melted more than half, the water and ice dividing line is so clear. The park gathered some sunbathing elderly people, talking and laughing.