Why we swim can often be political, and swimmer Grace Wright-Arora has completed research on pollution, activism and alternative water knowledges among users of the River Avon, near Bristol. Central to this work is understanding why people swim in the Avon, despite knowing of the often high risks of exposure to pollution and even infection there. This podcast is about her swimming experiences, how Conham river bathers navigate uncertainty and risk of exposure, and the politics of Avon River management.