The Nu celebrate the tribal flower-fairy festival, which is mainly celebrated by the Nu in the Gongshan area of Yunnan province. According to the Chinese lunar calendar, the festival comes on the 15th of March annually and lasts three days. The festival is based on the legend that the Nu River often flooded in ancient times. A Nu girl named A-Rong, inspired by the web of a spider, created a kind of rope-bridge, by which the people could cross the river. Coveting the beauty of A-Rong, the chief of the Hou tribe tried to force her to marry him time and time again. However, A-Rong would not agree, so she escaped into the mountains and eventually turned into a stone statue in a cave. To honor her, the Nu people celebrate Fairy Festival on March 15 every year.