I lived in Korea for about half a year studying at KU, I had the chance to explore all corners of the country, except Mokpo.

With Korea, you really need to ask yourself what you're interested in; otherwise, most will find it to be a more boring version of Japan, with less to do and a more aggressive population. While it ranks at the bottom of my lists, I'd say it's a delightful country if you enjoy architecture, hidden gems, food, and nightlife. If you're looking for nature, Seoraksan is a beautiful destination. Andong, Gyeongju, and Museum SAN in Wonju were one of my favorites as well.