The Full Distance Triathlon 140.6 Les Sables d'Olonne-Vendée features a 3.8 km swim starting on the beach in front of Les Atlantes, taking athletes through the historic Vendée Globe canal. The average water temperature is 66°F (19°C). The 180 km bike course heads east of the city, winding through the Olonne forest and scenic French countryside, presenting athletes with hills and turns. Finally, the 4-loop run course follows the promenade and around Tanchet Lake, with the finish line in the ...