Tongil Garden is a summer restaurant in Jeju that serves black soybean noodles. The signature dish is black soybean noodles, and the restaurant makes its own fresh noodles with ground broccoli leaves for a chewy texture. You can walk in at 10:40 a.m., but tables fill and lines form before 11 a.m. and noon, though turnover is fast. Take a waiting ticket, order the black soybean noodles and yeolmu noodles, and use the large parking lot; the noodle portions are small.