Udo Haenyeo Sikdang is a seafood restaurant on Udo in Jeju that serves kalguksu with abalone, sea urchin, and bomal. The broth is spicy and clear, and it contains live abalone and octopus. You can boil the noodles for one more minute at the table, then add fried rice to the remaining broth. The portion of noodles is small.