La Groisillonne

The La Groisillonne, a coastal trail event held on the picturesque Île de Groix in Brittany, is scheduled for Sunday, May 24, 2026. This event offers a variety of distances designed to showcase the island's unique island geography, ranging from youth-focused runs to a challenging technical trail. The race village serves as the central hub for local partners, transport information, and participant coordination.

Event Logistics and Participant Information:

• -- Medical Compliance: For all distances from 3 km to 18.6 km, participants must provide a valid sports license, a medical certificate dated within one year, or a completed PPS (Parcours de Prévention Santé) certificate.
• -- Strict Payment Window: The online registration system requires payment completion within one hour of validation. Failure to finalize the transaction within this timeframe results in the automatic deletion of the entry.
• -- Youth Formats: The 1 km and 2 km races for younger participants (ages 7 to 13) are non-timed and do not feature official rankings, focusing instead on participation and introduction to running.
• -- Race Mapping: Specific course maps are available for every distance, outlining the coastal paths and interior island trails utilized for the 2026 edition.
• -- Travel and Lodging: Given the island location, the organization provides dedicated information regarding ferry transports and local accommodations on Groix to assist mainland participants.

Regional Context and Environment:

• -- Location: The Île de Groix, located off the coast of Lorient in Morbihan, offers a rugged and diverse trail environment featuring cliffs, beaches, and moorlands.
• -- Course Characteristics: The 18.6 km "Trail des Marathoniers" is the flagship event, featuring 212 meters of elevation gain and navigating the technical coastal perimeter of the island.
• -- Community Support: The event is backed by local partners and coordinated through the official association portal ([email protected]) for all athlete inquiries.
• -- Sustainability: Runners are expected to respect the fragile island ecosystem, particularly when navigating the sensitive coastal paths included in the race plans.

La Groisillonne 2026 offers an immersive athletic experience that combines technical trail challenges with the exceptional natural heritage of one of Brittany's most iconic islands.