Shuanglongxia Scenic Area is located 2.5 kilometers south of Huo Village, Zhaitang Town, Mentougou, Beijing. It is 78 kilometers away from Beijing. The scenic spots are summarized as : Shili stream, Baitan waterfall, 1000 mu of red apricot, 1000 hectares of forest sea. " It's a green valley with lofty peaks. In summer, the mountains and flowers are everywhere, and the rivers are rippling with beautiful scenery of the North, so it is also called Xiaojiuzhai.