Introduction to the Painted Corridor: There is a painted promenade at the foot and top of the park, which is a good place for tourists to take a rest and enjoy the cool air. The promenade at the bottom of the mountain is 90 meters long and is located on a hollow stone dam. The promenade on the top of the mountain is 150 meters long and is the tallest painted promenade in Beijing. It looks like a crouching dragon looming in the clouds and mist.