Seongneol Oreum

It is the largest hill on the eastern side of Hallasan National Park, rising 750.2 m above sea level. It is distinguished by numerous valleys, ravines, and dense forests, and its high rock walls are said to resemble a plank-built castle, hence the name 'Seongneol Oreum. There is a long line of densely vegetated and massive stone walls, but it is a controlled access area, so if you climb the Hallasan Seongpanak Trail to Baengnokdam Lake, you can see this view from the Sokbat Shelter.