Naksan Naengmyeon is a spicy cucumber naengmyeon restaurant in Changsin-dong, Jongno-gu, Seoul, a five-minute walk from Exit 9 of Dongmyoap Station. It serves sweet-and-sour naengmyeon topped with a heap of shredded cucumber, brought out with broth like mul naengmyeon. Customers choose their level of spiciness when ordering, and takeout is available. Shoes are removed at the entrance, and there are no side dishes such as dumplings.