Keep your eyes peeled at Kohyeon General Market — you're likely to come across some treasure or funny trinket in one of its many stalls. After you've had a good look at the wares, grab a bite to eat from one of the food vendors.
You'll find this community marketplace in Geoje. Once you've seen everything you want to at Kohyeon General Market, take a look at nearby Geoje Shipbuilding Marine Cultural Center, Deokpo Beach, and Geoje City Hall.