Keunson Kalguksu is a restaurant near Ilgwang Beach in Busan that serves kalguksu and Chungmu gimbap with noodles made in-house. The kalguksu noodles use a spinach dough that gives them a light green color, and the menu also includes bibim kalguksu, kongguksu, and yeolmu guksu. An elderly couple runs the restaurant and pulls the noodles to order. Food takes a long time to arrive after ordering.