Wonhyo Guljjim is an oyster restaurant on Wonhyo-ro between Yongsan Station and Hyochang Park Station, serving steamed oysters and steamed shellfish. The menu centers on steamed oysters and steamed scallops, with oyster jeon, seasoned oysters, and seafood ramen available alongside. After ordering and the table is set, the steamed oysters take 15 to 17 minutes to cook, and parties of five or more can reserve. Dishes arrive well after the order is placed.