Take some time out from cities and concrete at Dongtan Lake. This is the perfect place to get some fresh air, find a shady spot and just soak up the views.
This body of water is in Hwaseong, a destination that has loads going for it! Mulhyanggi Arboretum, Korea Country Club, and Doksanseong Fortress are other good sightseeing choices nearby when you're all done at Dongtan Lake.