SHORE TO FINISH: SWIM, CONNECT, CELEBRATE
Join our iconic open-water swimming events that bring people together across the most beautiful rivers, lakes, and ocean locations in France and Switzerland.
FROM TRAINING TO ADVENTURE
Join our events and turn your preparation into real open water experiences.
8 EXCITING EVENTS
Discover a wide variety of cities and landscapes in our 8 events venues in France and Switzerland.
MULTIPLE DISTANCES
Discovery, Evolution, Performance: find the distance that matches your goals.
VARIED EXPERIENCES
From ocean, to rivers, and lakes, experience swimming to the fullest.
JOIN THE 12TH
OPENSWIM SERIES
The twelfth edition of the OpenSwim Harmonie Mutuelle — France's leading open-water swimming series for the general public — will take place across eight French cities and one in Switzerland from May to September 2026.
In 2026 we launch our events in three distinguish series - Lake, River and Ocean.
Our goal is to welcome even more people into open-water swimming with events tailored to every level. The circuit also reflects our growing commitment to raising awareness about water protection, preserving our environment, and promoting the positive impact that physical activity has on health and wellbeing.
START YOUR CHALLENGE HERE
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Lacanau
WHAT OUR PARTICIPANTS SAY
Backed by more than a decade of experience, our open water swimming events are designed to give swimmers complete peace of mind, letting them concentrate on what matters most: the swim.
Paris report
Super course, très bien organisée, excellente idée de faire des départs à la file plutôt qu'une mass start ! C'était fabuleux
Paris report
A refaire très vite ! Merci pour l'orga et le report
varied training sessions, perfect for progressing! Flawless connection with Strava 👌
Lyon
Que du bonheur
Lyon
Un régal !
Lyon
Merci à toutes et tous. Une première pour moi sur le 1.1km, quelques bonnes tasses bues, mais un super souvenir et au profit d'une belle cause. À refaire
GET READY WITH OUR TRAINING APP
Connect your watch and reach your goal
CONFIDENCE STARTS HERE
Join our Open Water Training Camps and build confidence, skills, and endurance.
DISCOVER OUR SWIM CAMPS
