Guksu Madang Main Branch
Ildo 2-dong, Jeju City, Jeju Special Self-Governing Province, South Korea

Guksu Madang Main Branch is a verified Jeju City restaurant on Jeju’s Noodle Culture Street, close to the rear entrance of Shinsan Park in Ildo 2-dong. Visit Jeju identifies it as a restaurant specialising in Jeju-style meat noodles, with gogi-guksu as the signature dish, and places it in the island’s old downtown near the Jeju Folklore & Natural History Museum and Samseonghyeol. That setting matters: this is not a generic noodle stop but a practical way to try one of Jeju’s best-known local dishes in an area already associated with noodle culture. The official listing also gives a precise street address on Samseong-ro, helping confirm that this is the central Jeju City branch rather than an uncertain off-island or duplicate listing. The menu described by the tourism source extends beyond the headline bowl, with bibim gogi-guksu, anchovy noodles and Jeju dishes such as momguk, dombe-gogi and agangbal. Visit Jeju states that the restaurant has operated since 2000 and was designated as the first restaurant on the street, which supports its relevance in the local noodle district. For travellers, it works especially well as a focused lunch or early evening stop: easy to combine with nearby sightseeing, clearly local in speciality, and straightforward to access without permits or any access formalities beyond normal restaurant opening hours.