Hamdeok Yongdune Haejangguk is a hangover soup restaurant next to Hamdeok Beach and Sono Belle Jeju Hamdeok, serving gosari haejangguk and jeopjjak ppyeoguk. The two-person set comes with dombe-gogi, eaten with salted hairtail innards and cabbage. It opens early in the morning, and food comes out quickly after ordering. The spicy bone hangover soup is on the hot side.