Qiandao Lake or the Thousand Island Lake is an artificial lake formed after the completion of the Xin'an River hydroelectric station. The lake is so called because it is dotted with 1,078 large islands and a few thousand smaller ones across it. Qiandao Lake, known for its clear, and sometimes drinkable water, is used to produce the renowned Nongfu Spring brand of mineral water. It is also home to lush forests (over 90%), and exotic islands. In recent times, it's been turned into a tourist spot with themed islands that include Bird Island, Snake Island, Monkey Island, Lock Island.