Mulhyanggi Arboretum is located in Sucheong-dong of Osan, Gyeonggi-do, known since the past to have clear flowing water. The arboretum is 34 hectare in size with 19 different themed gardens with over 1,920 different plants and flowers.
Source: Korea Tourism Organization official English tourism database. Opening hours and details can change — check the official website before visiting.