This boat sits on the Kunming Lake, Summer Palace. It is 36 m long and its body was made of marble. On top of it is a two-storeyed structure. The floor was paved with colored bricks. All of the windows are inlaid with multi-colored glass and the ceiling was decorated with carved bricks. The drainage system channels rain water down through four hollow concrete pillars and into the lake through the mouths of dragon heads. The boat was used for enjoying the scenery and was supposed to be symbolic of the stability of the Qing Dynasty.