Seonam Lake Park is an urban park next to Hamwolsan in Seonam-dong, Nam-gu, Ulsan, South Korea. The park was previously named Sunam Dam Park (선암댐공원) because of the large C-shaped dammed lake in the center of the park. There are approximately 4 kilometres (2.5 miles) of walking trails around the lake, a rose garden, a lotus pond, a soccer field, tennis courts, and a survival game field.