Dolhareubang Sikdang is a Korean restaurant in Jeju that serves gakjaegi-guk and grilled mackerel. Gakjaegi-guk is a Jeju-style fish soup boiled with cabbage and doenjang. The owner, a man in his nineties, cooks the food himself, and ordering gakjaegi-guk brings braised mackerel and basic side dishes to the table. Business hours run from 10 a.m. to 3 p.m., which makes it difficult to time a visit.