Seonsu Port, officially named Hupohang Port, is the largest port on Ganghwado Island, located near Dongmak Beach. Fishing boats anchored here often travel to and from waters near Seongmodo Island, known as a fishery of large-eyed herring. Visitors will find several hoe (sliced raw fish) restaurants along the port, serving hoe prepared with freshly caught seafood.

The seaside destination is close to many nearby attractions including Jeondeungsa Temple, Dongmak Beach, and a scenic drive along the coast of Ganghwado Island. The port is also known for romantic sunsets which are best enjoyed when viewed from between the port and Dongmak Beach.