It is 4 station away from Myeongdong, and takes 8 minutes without any transfers. This park which is a 15- minutes-walk from the station, is a popular observatory park to the locals. There are wide walking trails with street lights, so it should be safe.

There are many night view points in the park, but the highlight of the park is the Nakusan Observatory (I placed a pin on the map). This observatory with a nice atmosphere is a spot you cannot miss.