One Lake (Michigen Lake) and one river (Chicago River) are the characteristics of Chicago. Chicago developed lakeside beaches early, and built "Chicago River walk" more than 20 years ago. This leisure trail is located on the South Bank of the Chicago River. Loop Road in Chicago is dense, and there are many bridges on the Chicago River. Riverside trails use blocks, the original separation of bridges, between roads and bridges, open up five concave "halls" of streets with rich forms and functions. From east to west, they are pier Plaza (where the main dining chair areas are concentrated), River Bay (water sports and leisure projects such as rowing), water theater (ladder stone steps connecting shore and street), water Plaza (shallow fountain, parent-child interactive water play space), and wharf (wharf and water wetland garden, fishing can be done). The separated "hall" is connected by a trail under the bridge. On the North Bank of the river are famous buildings such as the Wrigley Tower, Trump Tower and Malina Tower (commonly known as "Corn" Building).