On the southern end of Geoje lies Mangsan, known for its spectacular sunsets and ocean view! The shortest trailhead to start from is in Hongpo, which is just 1km from the rocky peak!
On an especially clear day you can even see the island of Tsushima, Japan from here!
Of course you can return the way you came, but why not continue hiking and emerge at Myeongsa Beach. If the weather is warm enough, reward yourself with a nice swim!
Alex Barnett is a friend of mine and another avid hiker. You can check out his video series on some of these mountains as well.