Haeundae 31cm Haemul Kalguksu Guseo Branch is a restaurant in Busan that serves haemul kalguksu and haemul pajeon. The signature haemul kalguksu contains mussels, surf clams, littleneck clams and scallops, uses thick noodles made in-house, and the 31cm refers to the diameter of the bowl. There is parking available, and the interior is clean. The kimchi is fairly spicy.