Located in southeast of Huinan Province, the forecast park takes up 8,133 hectares. Longwanqun (Dragon Bay Group) owns the most volcanoes in Northeast China and is the largest Crater Lake group in China. The park consists of “seven bays, one waterfall, and two peaks”, such as Sanjiaolong Bay (Triangle Dragon Bay), Dalong Bay (Big Dragon Bay), Erlong Bay (Medium Dragon Bay), Xiaolong Bay (Small Dragon Bay), Donglong Bay (East Dragon Bay), Nanlong Bay (South Dragon Bay), Hanlong Bay (Dry Dragon Bay), Diaoshuihu Waterfall (Kettle Hanging Waterfall), Jinlongdingzi Mountain, and Sifangdingzi Mountain. The Longwan drifting area is one kilometer away from the east side of Back River Forest at downstream of Xiangshui River, Diaoshihu Waterfall Scenic Area, where supporting services and safety facilities are complete. It is a good place for tourists to have a deep experience of forest tour fun and passion release.