One stop away from the East Sandong Beiyan Museum, is the Korean National Maritime Museum, which is the largest and highest maritime museum in South Korea. It is not only free to open, but also open until 9 at night! Here you can see South Korea's great adventures on the Northeast Asian seas since the Stone Age, the evolution of ships in various periods, and the development and research of the seas in contemporary Korea. Don't look down on South Korea, a small country in Northeast Asia. In shipbuilding, it can compete with the two majors of the Tian Dynasty. But seriously, the most eye-catching thing about this museum is not the history of Korean navigation, but the large aquarium with an internal corridor.