Cafe Sum is a large bakery cafe in Pocheon, near Namhansanseong. It serves breads such as Shanghai butter rice cake, cream cheese pretzel, and anggeum mammoth, along with watermelon juice made only from watermelon. The main building has a high ceiling, a duplex structure, and full-length windows, while the annex holds a music listening room and a birch space. The rooftop offers a view of the surrounding mountain landscape.