1982 Nonhyeon Hwangso Gopchang serves all-you-can-eat gopchang and mixed grills near Gimpo Airport. The mixed platter includes gopchang, daechang, beef tripe, and beef heart, and the gopchang ingredients are fresh. Ordering the platter comes with beef bone hangover soup at no extra charge, and there is a self-serve corner. The beef bone hangover soup has large chunks of meat and a rich broth.