Near Dongmak Beach, Seonsu Port (also called Hupo Port) is the largest port on Ganghwado Island. Fishing boasts anchored here often travel to and from the Seokmodo Island area which is known for catches of Large-eyed Herring. Thus the port is known for its many sashimi restaurants offering freshly-served cuts of this fish.Usually return with Large-eyed herring are known for their tenderness and delicious taste. Herring sashimi is available year-round, but many believe it tastes best in May when the fish grow plump in size. In addition to sashimi slices, Large-eyed Herring can be enjoyed roasted, fried, mixed in dishes, or added to soups. Large-eyed Herring soup is a spicy stew that contains ground herring. This delicious menu item is difficult to find away from Seonsu Port. The fish market inside the cluster of restaurants offers fresh seafood including herring, blue crab, king prawns, bass, gray mullet, and webfoot octopus at reasonable market prices.The seaside destination is close to many nearby attractions including: Jeondeungsa Temple, Dongmak Beach, and a scenic drive along the coast Ganghwado Island. The port is also known for romantic sunsets which are best enjoyed when viewed from between the port and Dongmak Beach.