In a country of mountains, Daedunsan Mountain stands out for its famous suspension Cloud Bridge and its colorful contributions to the South Korea fall. Hiking Daedunsan Mountain will bring you face-to-face with autumn colors in all their glory!And what a feat, for South Korea is full of mountains! Early European visitors to the Korean Peninsula are said to have likened the region to “a sea in a heavy gale,” because of the numerous mountain ranges snaking up and down the entire peninsula. About 70% of South Korea’s land is mountainous, meaning no matter your position in the country, the mountains won’t be far away.