The Aquathlon de Bourg en Bresse is a city aquathlon held in Bourg-en-Bresse, located in the Ain department within France's Auvergne-Rhône-Alpes region. It features short swim-run formats: the S race combines a 1 km swim with a 5 km road run, and the XS race offers a 500 m swim followed by a 2.5 km road run. This event takes place in early March, providing a concise multisport choice instead of a lengthy triathlon.
The format is suitable for both experienced athletes and those new to racing, as the distances are brief yet require two distinct efforts consecutively. The event also offers children's and junior courses, extending beyond an adult-only start. The run course is situated within the urban environment of Bourg-en-Bresse, and the event's organizers suggest local attractions like the Royal Monastery of Brou, the Parc des Oiseaux in Villars-les-Dombes, and the medieval village of Pérouges for visitors to explore post-race.