Known as the Huangguoshu Waterfall National Park, it is 45 kilometers (28 miles) southwest of Anshun city in Guizhou Province. Together with minor waterfalls, the charms of Huangguoshu Waterfall are a natural tourist drawing card. Hospitable ethic groups add the human touch.Huangguoshu Waterfall is the best known of some 18 in a cluster of waterfalls. Its flow is seasonally changed. A reservoir behind the waterfall holds back some of the water. Doupotang Waterfall, one kilometer (less than one mile) up the river to Huangguoshu Waterfall, at 105 meters (344 feet) across is the widest. It is 21 meters (69 feet) high. Other waterfalls like LuosiTan Waterfall, Silver-Chain Waterfall and Dishuitan Waterfall all have their special features.The Water-Curtain Cave dissects Huangguoshu and provides visitors whole view on the waterfall. The total length of the cave is 134 meters (440 feet). A road on the mountainside leads into the Water-Curtain Cave, where the waterfall can be heard, watched and touched. On a sunny day, a rainbow arches over the falls.