History & Heritage
A crossing rooted in Lake Annecy since 1931
Organized by Les Dauphins d’Annecy, the Traversée has grown from a local swimming tradition into one of the lake’s most recognized open-water events. Its story is told by the swimmers and volunteers who have returned year after year.


The Club and the Crossing
Built by swimmers, carried by volunteers
Les Dauphins d’Annecy has organized the crossing continuously since 1931, shaping a tradition of open-water swimming in the heart of the Alps. Each edition has been defined by the people who prepare the course, welcome swimmers at the shore, and keep the event’s spirit alive.
Today the event honors that legacy while looking ahead. Details for each new edition are shared only once confirmed, so that every swimmer can prepare with trustworthy information.
Key Milestones
A tradition that continues
1931
First year organized by Les Dauphins d’Annecy
Continuous
Organization of the crossing since its beginning
Lake Annecy
The setting that defines every edition