That is a title of the site. Even I’m Korean, I didn’t know this site. (now, I know. haha)
It is managed by Korean Tourism Organization, which is national organization, in English, Japanese, Chinese(2 types), French, Spanish, German, Russian and Thai. If you need any travel guide about Korea, it would be good choice. They provide a wide range information of Korea not in detail. The details are like common travel guide books.
But I highly recommend to visit the site since they provide information about festival and event also suggest itineraries. They focused on short period trip and main tourist area. If you want someone who can suggest any place in Korea, visit this site and choose one of them. It would be helpful for you.
There are discount coupons. There is ‘K-shuttle’ program, which is kind of package tour program, and when I saw the schedule I thought ‘omg… the route is really perfect for foreigners but quite… heavy schedule! how they can stay up on next day.’ It’s really tough schedule even for Korean but really good route. If you have any interest, it would be good but if you don’t want that kind of schedule, just consult the route.
Just visit the website and hopefully, get any inform you want.
Have a nice day in Korea!
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I brought all pictures in this article from http://english.visitkorea.or.kr/