National Parks of ChinaOverview
| Designation | National Park of China (fifth batch) |
| Province | Chongqing |
| Location | Fengjie, Chongqing |
| Latitude, longitude | 30.8, 109.4 |
| Nearby cities | Wuhan, Chongqing, Chengdu |
| Highlights | Karst sinkhole |
| Top sights | The sinkhole and the fissure |
| Nearby sites | The Three Gorges of the Yangtze, Wulingyuan (Zhangjiajie), Furong River, Wulong, Mount Wudang, Tanzhang Gorge |
| Themes | Karst, Caves, Glens, Great rivers |
About
The Tiankeng–Difeng scenic area lies south of the Yangtze in Fengjie County, Chongqing, over 300 km² in six parts: the sinkhole, the fissure, the Longqiao, Migong and Jiupan rivers and Maocaoba, the sinkhole and fissure being the main sights.
A tiankeng is a karst doline. The Xiaozhai sinkhole at Fengjie is the largest known in the world: 666 m deep, 622 m across at the rim and 522 m at the floor. The Tianjingxia fissure is a hidden crack 37 km long, 80 to 300 m deep and 1 to 30 m wide at the bottom, a classic “one-line sky”.