Dongdong Guksu is a Korean restaurant in Yeouido, Seoul, serving yukgaejang kalguksu and cold noodles. The yukgaejang kalguksu combines spicy yukgaejang broth with kalguksu noodles, and in summer the kimchi-mari guksu and sesutdaeya naengmyeon are good choices. Yukjeon, myeongtae makguksu, and meat mandu are also on the menu. In summer, sesutdaeya naengmyeon is more popular than yukgaejang.