Benxi Water Cave Scenic Area lies in the eastern mountainous area of Benxi City, Liaoning Province. It is a national AAAAA-level scenic spot and national natural heritage site, formed hundreds of thousands of years ago as a large karst cave with an underground river. The cave consists of a water cave and a dry cave. The main water cave, also called Winding Milky Way Cave, stretches for 3,650 meters. Visitors sail along the clear underground river to admire stalactites, stalagmites, stone curtains, and other karst formations. The cave maintains a constant temperature of about 12°C throughout the year. The scenic area also houses the Benxi Branch of China Geological Museum and the Silicified Wood Kingdom, making it a popular national science education base. A suggested visit duration is about 4 hours.