Beijing, Jun 5 (Youth.cn) - Shimen Reservoir in Shuanghuaishu Township presents a breathtaking sight in a midsummer day. With its crystal-clear waters mirroring the blue sky and white clouds, the scenery is utterly soothing. Built in 1975, the Shimen Reservoir is a Class I small-sized reservoir primarily designed for flood control and irrigation, while also serving purposes such as power generation, tourism, and aquaculture. Photo/CFP