Hampyeong Naengmyeon is a naengmyeon restaurant in Jung-gu, Ulsan. It serves two styles, Pyongyang-style and Hamhung-style, and diners choose either mul naengmyeon or bibim naengmyeon. Pyongyang-style uses buckwheat noodles and Hamhung-style uses sweet potato starch noodles, while bibim naengmyeon comes with warm broth on the side. Arriving early avoids the wait.