Geumgangsan is a Jeolla-style restaurant near Sookmyung Women's University Station in Seoul, serving gamjatang, kimchi jjim, samgyeopsal, and hongeo samhap. The kitchen uses aged kimchi fermented for three years and sourced from Gangjin, pairing it with the gamjatang and samgyeopsal, and also serves salted hairtail innards and green onion kimchi. It stays open until 10 p.m., and a wait forms in the evening. Prices run on the higher side.