Em
Raced 2025 · 8/13/2026
4/5 overall
Swim5Bike5Run3Org5
Vieux-Boucau-les-Bains, Nouvelle-Aquitaine, France
Family-friendly Challenge race on the French Atlantic coast — flat, fast, and beginner-friendly.
Single-loop swim in the Lac Marin de Vieux-Boucau — protected saltwater lagoon, warm and calm.
Flat, fast bike through the Landes pine forests along the Atlantic coast.
Flat run around the marine lake and seaside promenade.
Actual monthly averages from the last 3 years (Open-Meteo). Real race day may vary.
Water temp uses athlete-reported values first, then official race data, then the marine archive (sea swims, measured at the nearest offshore point). Values tagged est. are modelled from recent air temperature for lakes and rivers, where no observational data exists.
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