Pupils play at a corridor covered by calabash vines in Hongshigou scenic spot in Shahe City, north China's Hebei Province, Aug. 10, 2018. Recent years, tourist industry in Shahe has seen an all-round development with three scenic spots approved as national 4A level scenic spots. Shahe City welcomed 1.1 million tourists in 2017. (Xinhua/Mu Yu)