The "Bukhansan 25". Climb 25 peaks in ultra-popular Bukhansan National Park! This challenge lies on the northern edge of the huge urbanity of Seoul. A well-worn trail network connects the summits of the many granite-topped peaks including the highest in the park, Baegundae Peak, likely the most climbed peak in Korea. Excludes summits requiring technical skills (such as popular rock climb Insubong). A must-do challenge within arm's reach of the 25 million people in the Seoul metro area.