Kunyu River (昆玉河)from the Summer Palace's Kunminghu (昆明湖) to Yuyuantan lake and 7.37 kilometers in length. Is an important river runs through the western of Beijing, as a part of Jingmi diversion canal(京密引水渠) and the Yongding river diversion canal(永定河引水渠), constitute a part of water system of Beijing. The main source is the Miyun reservoir, also can use the Guanting Reservoir inflow. In Changchun Bridge south into Nanchanghe River and in the Luo Dao Zhuang bin angle Park and the Yongding River Diversion Canal join
昆玉河就是平时所说的京密引水渠，这一段是从颐和园昆明湖南侧的南如意门到玉渊潭公园，全长7.37公里。这段水路风光优美，绿树成荫，夏日里还可以坐船游览两岸的景色。如果你有体力，完全可以沿着昆玉河西岸走一圈，因为cache也都在西岸。