Man, I loved Korea. If you get a chance, go through a local market. Look for the rice cookies with red bean filling. They look like little green, pink, or white balls and are oh so good. If dining out, ask for kim bim bop, its a sort of Califirnia roll and bim bim bop, a fired atone bowl with noodles, vegetibles, meat, and kimshi topped with a fried egg. Korean fajita.
Get a blanket if you can fit it in your luggage. I have three and ita been 20 years since I was in Korea.