Old Kalguksu is a market-style noodle shop near Yeongdeungpo Market in Seoul that serves kalguksu, janchi noodles, and buckwheat kalguksu. The menu also includes deulkkae kalguksu, buckwheat jeonbyeong, and bibim makguksu. The owner runs the shop alone, and most customers are market vendors, so it is busy at lunch. The inside of the shop is cold, which is a drawback even when the food is warm.