Suun Choe Je-u Yuhaeji is in Yugok-dong, Ulsan. It is where Choe Je-u, who founded Donghak, practiced at his in-laws' home in Ulsan and attained enlightenment. The site is Ulsan Metropolitan City Monument No. 12, and it holds a memorial stele, a restored thatched house, and a lawn. Parking space is small, and construction vehicles make parking difficult.