Cheonggyesan Mountain (청계산)

Standing at 618 meters above sea level, Cheonggyesan Mountain boarders the area of Yangjae-dong, Seoul and Gwacheon-si, Seongnam-si, and Uiwang-si, Gyeonggi-do. From the top, visitors can enjoy panoramic views of Seoul's city center and Gyeonggi-do. The mountain is well-maintained with various hiking trails, making it easy to climb even for beginners. In the fall, the mountain is known for its stunning fall foliage, attracting numerous visitors.