Yangtongchon Guksu at the entrance to Gaya Park serves chon-guksu, sogogi-guksu, and spicy sirak-gukbap. The noodles use anchovy broth, medium noodles thicker than somyeon, and generous toppings, making for large portions. The restaurant is open 24 hours, so it can be visited late at night, and taxi drivers are regular customers. The menu also includes bibim-guksu and beef gukbap.