How many kilometers is the total length of Cixi Waterway?

12 kilometers. The Royal River in Beijing is the oldest tourist route in China. It starts from the "Emperor Ship Pier" on the lake behind the Beijing Exhibition Center in the east and ends at the South Ruyimen Pier in the South of the Summer Palace. It is 12 kilometers long. The scenery along the way is pleasant and beautiful. When visiting the Summer Palace by water, you can admire the Sanxian Mountain on the East China Sea built by Emperor Qianlong, and also pass by the Xiuyi Bridge on the west embankment of the Summer Palace and Nanhu Island.