Reference: korean.visitkorea.or.kr/detail/ms_detail.do?cotid=fa7fa8d5-79b7-4586-ab77-3c0e73be91f7&big_category=A01&mid_category=A0101&big_area=39
Enjoy the Oreum views on the Hallasan Seongpanak Trail
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.