The most delicious duck I've ever eaten

...can be found at Gwandeoksan, a local mountain just outside of Cheonan.  It's so delicious because they slow-smoke it first over an open fire before they bring it your table.  And, the side-dishes are amazing, especially the pumpkin and salad.  They also have very good samgyeopsal and sausages.

Your menu options are basically a 1/2 or whole duck (40 000 Won), or a set of assorted meat (50 000/4 people).

How to get there?  Take bus #600 from in front of the Yawoori until the very last stop.  From the bus stop, walk up the hill down the road, continuing on in the same direction the bus was going.  Walk for about 3-4 minutes and you'll see a big restaurant on your left-hand side.  They have the fire thing going on out front.