If you want to add a little more culture to your escape, put Shinhan Museum on your itinerary. Check for guided tours or just wander around at your own pace.
Situated in Myeong-dong, this museum is worth a visit. But you'll find loads more to see and do in this area. Gyeongbokgung Palace, Dongdaemun History and Culture Park, and National Museum of Korea aren't too far from Shinhan Museum.