Seonghwan Sikdang is a fish soup restaurant near Gunsan's old customs house. Its signature dish is mulmegi-tang, made with dried and fresh mulmegi, and pulchi-jorim is served as a side dish. The restaurant opened in 1992 and is now run by its second generation, and it closes from 3 p.m. to 5 p.m. Side dishes also include jogi-jorim, jogi-gui, jeyuk-bokkeum, and ganjang-gejang.