Seoraksan National Park is Korea’s northernmost national park and contains some of the tallest peaks of the country. The magnificent fall foliage at Seoraksan National Park is one that should not be missed! There are plenty of hiking trails along the mountainside where you can catch the rich palette of red, orange and yellow vibrant autumn leaves. It is a very popular autumn foliage site for family and friends to get some peaceful time away from the city to enjoy the beautiful nature.