The Songhua River flowing through the urban area of ​​Harbin and has long been an important feature of the city. Every winter, the frozen river surface has become a popular resort for people. In the winter, the frozen Songhua River ice layer is roughly half a meter thick. People and carriages can traverse along the ice, stepping on the soft snow that has settled. The river surface in Harbin is about 100 meters wide. On the river, near the Flood Control Heroes Monument, there are skiing, skating, ice gyroscopes, snow tanks, ice-skating bicycles, etc. which are an enjoyable experience for adults and children alike.