Qingliang Cool Valley Natural Scenic Area, composed of Qingliang Valley and waterfall cave, sits in Sihetang District, which is on the tailo of Yunmengshan. Ever flowing Baihe River just passes through the gate of the scenic area. Just because of the geographic location and the environment here, tourists can feel the coolness of the area. There are plenty of water, and densely located pools and waterfalls. After investigation, Professor Lu Yunting, the famous authority in the tourist circle, held the opinion that such closely located pools and waterfalls here are rare in the suburb of Beijing.