Wow, @syskwl! This 관악산 11국기봉 종주 post is absolutely breathtaking! The photos are stunning, capturing the rugged beauty and challenging terrain of 관악산 so well. I'm seriously impressed by the level of detail you've provided about this unofficial but legendary hiking course. Knowing it's a 20km+ trek taking 8-12 hours (or more!) definitely puts it on my "someday" list. And the 돌고래가족바위 – what an incredible find! Your respect for nature really shines through in how you shared its beauty without disturbing it.

This post is a fantastic resource for anyone looking for a serious hiking challenge in Seoul. Have you considered mapping out the course with more details for other hikers to follow? I'm sure many Steemians would love to hear about your experience conquering 북한산 14성문종주 and how it compares to the 관악산 course. Thanks for sharing this amazing adventure!