Namhansanseong mountain Fortress is located just south-east of Seoul on mount Namhansan. The size of the enclosed area is so big that the fortress is nowadays actually a park and a popular one at that. The park has lot's of hiking trails and many cosy, high quality, little restaurants. It is a popular place for a weekend walk and lunch.
The oldest remains of a earthen fortification at mount Namhansan date from the Gogureyo period some 2000 years ago. The current stone layout dates from 1621 when the Joseon dynasty ruled Korea. The fortress has been largely restored and is impressive to see, next to that, when you climb up to the peak of the mountain, the views of metropolitan Seoul down below are stunning.
The walls and walking paths of Namhansanseong fortress are open to the public all year round but parts can be temporary closed because of weather conditions or hazardous situations.
Admission to the Fortress and park is free.
Visiting the Haenggung palace, located at the center of the fortress, has a small admission fee up to 2,000 Won. Except for Mondays, the palace is open all year round from 10:00-18:00.
Parking facilities are available near the center of the park at a fee of 1,000 Won.