Challenge Vieux Boucau - Vieux-Boucau-les-Bains 2026

Challenge Vieux Boucau is a triathlon weekend held at Plage du lac Vieux Boucau in Vieux-Boucau-les-Bains, France. The primary event is a Middle Distance triathlon: 1.9 km swim, 90 km bike, and 21.1 km run. Athletes can compete individually or as a relay. The schedule also features Olympic Distance, Sprint Distance, and children's races, catering to both adults seeking a long-distance challenge and younger participants beginning their racing journey. The shorter adult races maintain the swim-bike-run structure. The Olympic Distance involves a 1.5 km swim, 45 km bike, and 10.5 km run. The Sprint Distance covers 750 m swimming, 20 km cycling, and 5 km running. The children's event is a duathlon, not a triathlon, with categories for ages 6-9 and 10-13. The Middle Distance and children's races take place on the first day, followed by the Olympic and Sprint races on the second. An award ceremony is held for the Middle Distance participants. As part of the Challenge Family series, this French event connects to a global triathlon schedule.