Naerincheon River starts out as a small stream on Bungnyongsan Mountain and flows down Sogyebangsan Mountain before joining with other small valley streams to create the larger river that most people know. The river has created a valley with many interesting and uniquely shaped rocks as it flowed down the mountainside over the years. The waters are so pure, the small pebbles and sand lining the bottom of the stream can be seen clearly. There are a number of areas along the stream perfect for relaxing and enjoying some time in nature. Many families visit and enjoy fishing and the pure environment. The river is also well-known for rafting.