Mongsanpo Beach, part of Taean Coast National Park, stretches 18km southwest of Seosan, 9km south of Taean and along the west coast of the Nammyeon Peninsula. Mongsanpo's white sand beach is around 3-km long and has a 5-degree tilt. The water is 1~2m deep with an average temperature of 22 degrees Celsius.The beach is surrounded by a dense forest of pine trees. The  pine tree forest along the beach serves as a good autocamp location to enjoy some fresh air and the natural beauty of the surroundings. During low tide, the muddy sediments deposited by the tide provide a place for children to learn about the world of creatures living on, in, and under the mudflats while catching clams and mud crabs at the same time.A 1km drive towards the western direction while passing throug the spectacular tree tunnel created by pine trees brings one to Mongdaepogu Port (몽대포구) where a number of fishing boats are docked. Near the port, one can find a number of small seafood eateries to enjoy some freshly sliced raw fish at reasonable prices.