Introduction to the open-air water curtain performance square: The open-air water curtain performance square is a sunken square located under the Holding Bridge. With the two-wheeled Lanzhou waterwheel as the background, the square has a circular stage and can accommodate 400 people. The four-level semicircular grandstand. There is a fan-shaped fountain between the stands and the stage. Audiences can enjoy the ever-changing musical fountain while watching theatrical performances with strong local characteristics.