https://www.lausanne-tourisme.ch/fr/evenement/triathlon-de-lausanne/

The Lausanne Triathlon takes place in Ouchy, on the lakeside, and offers experienced amateur athletes the opportunity to compete in three Olympic-distance disciplines:

• 1.5 km swim
• 40 km bike ride
• 10 km run

Other categories are also available, such as children's and youth distances, relay races, and family races.