22.3 kilometers. Baidu map shows that Dongan Lake is located in Checheng Avenue, Longquanyi District, Chengdu, and Longquan Forest is located in Chashi Road, Chadian Town, Longquanyi District, Chengdu, with a distance of 22.3 kilometers. It takes 1 hour, 10 minute to drive there. The water area of Dongan Lake is 1.634 mu, which plays the functions of irrigation guarantee, flood control and storage, municipal water supply and improvement of urban water ecological environment. It is a unique landscape lake, unbounded lake, leisure lake, sports lake and humanistic lake.