Guizhou is a mountainous province in southwest China. It's known for its traditional rural villages, inhabited by minority groups like the Miao and Dong. It's also famed for 74m-high Huangguoshu Waterfall. Nearby, Dragon Palace Cave is an extensive underground system with waterways. Zhijin Cave’s vast caverns house karst formations. Outside Guiyang, the capital, is the 14th-century Qingyan fortress and town. These are two of China's largest and most spectacular natural features. Amazing scenery stretching out to the horizon, with green hills and limestone formations.