The Wunnebad was conceived at the start of the 90s as combined baths that can be used all year round. In order to provide a contemporary range of bathing options, the facilities will be successively converted, modernised and extended in three construction phases. The design for the competition, prepared by 4a Architekten together with Jetter landscape architects, blends gently into the landscape and merges fluidly into the green space. To minimise their impact on nature, the new building elements have been partially embedded into the slope.