Not to miss routes/areas in Korea?

Hi All,
Headed to Korea to visit my brother and will be taking my trad rack and sport draws/rope. Will be based in Seoul, but access to a car and public transport and looking to get out as much as possible. Planning on doing the Chuinard A and B routes, anyone else been there and want to recommend some crags/routes they really liked?

Also: looking for partners while i'm there. hit me up if you want to climb!
-Jeremy

hey!
Check out the website and forums at koreaontherocks.com

Enjoy!