The exhibition «Swim City», held at the S AM Swiss Architecture Museum from the 25th of May to the 29th of September 2019, is the first to draw attention to a particular contemporary phenomenon in urban space: river swimming as a mass movement. Swiss cities have played a leading role in the development of this activity over the last few decades, gradually opening up the river as a natural public space within the built environment. The river has thereby become a place of leisure, open to all, located right in front of residents’ doors and seamlessly integrated into everyday life.