Jeju Hongnang Jjamppong is a Chinese restaurant near Jeju City Hall that serves jjamppong made with Jeju rock octopus. The signature dish comes with a whole octopus on top and seafood in the soup. The broth has a spicy, smoky flavor, and the octopus is chewy and tender. Tangsuyuk and jaengban jjajang can also be ordered.