About

The Ultra Marin is a renowned ultra-trail event in France, offering multiple race formats and drawing thousands each year. Its main event, the 175 km Grand Raid, is a low-elevation loop around the Gulf of Morbihan, starting and ending in Vannes. The trail features a unique mid-race boat crossing and takes runners via rugged coves, historic tide mills, and vibrant Breton ports like Saint-Goustan. The course challenges athletes with its diverse terrains, including pine forests, bird-rich marshes, and ancient stone relics such as the Kernours megalithic site. This endurance test, running through day and night, immerses participants in breathtaking natural and cultural landscapes. The four-day affair peaks at the Vannes port esplanade, where finishers are met with cheers, regional pride, and a deep sense of achievement.