Triathlon SwimRun Dinard Côte d’Emeraude brings nearly a thousand athletes to Brittany’s Emerald Coast each September, after the main tourist rush has passed. Émeraude Events organizes it, and the group was one of the first in France to bring in swimrun racing. The program mixes open-water swimming, road cycling, trail running, and the swimrun format, where athletes alternate between swimming and running instead of staying in one discipline at a time.
The triathlon route starts with 1.9 km of swimming at Longchamp, a big family beach also popular with surfers, then sends riders over 90 km of Côte d’Emeraude roads. The half-marathon run passes the villas of Saint-Lunaire and the rougher GR 34 paths around Saint-Briac-sur-Mer. The swimrun side uses the coast more directly, moving between emerald-colored water and the old customs trail, with places such as Saint-Sieu beach in Lancieux, Pointe du Nick in Saint-Lunaire, and Balcon d’Emeraude in Saint-Briac-sur-Mer on the route. Dinard adds the seaside-resort setting, including the striped beach huts that are part of its image.