20-21 mars 2027 — Baie du Mont Saint-Michel
Mont Saint-Michel Marathon & Ultra Trail 2027
A legend returns on 20-21 March 2027 — your accommodation 10 minutes from the finish
A legend returns on 20-21 March 2027 — your accommodation 10 minutes from the finish
After an eight-year absence, the Mont Saint-Michel Marathon returns on 20-21 March 2027 — and it returns big: marathon, half marathon, 10K and two brand-new trails including a 90 km ultra, all finishing at the dam facing the Mont. Bibs are limited and the draw will be oversubscribed: if you get yours, book your accommodation immediately. Domaine des Figuiers in Servon is 10 minutes from the finish line.
Saturday 20 March: the Course des Petites Mouettes for kids, the Trail de la Baie (45 km, 130 m D+) and the Mont Saint-Michel Ultra Trail (90 km, 670 m D+). Sunday 21 March: the Boucle de Cancale (10K), the Semi du Rivage (21.1 km) and the Mont Saint-Michel Marathon (42.2 km). Starts split between Brittany and Normandy, finishes at the dam facing the Mont, on a UNESCO-listed site. The marathon and trails are each limited to around 1,000 participants on the Mont side: entry by draw from 13 October to 3 November 2026 on the official website.
The big novelty for 2027: a 90-kilometre ultra trail with 670 metres of climbing, setting off from Fougères — its medieval fortress and bocage paths — down to the Mont Saint-Michel dam. A demanding format despite a fast profile, and a first edition, with all the pioneer spirit that promises on the start line.
The second trail starts in Avranches and follows the bay for 45 kilometres to the dam, with only 130 metres of climbing: a fast course, accessible to road runners curious about trail running, with the Mont in sight over the final kilometres.
March in the bay is low season: the chance to stay 10 minutes from the finish, in the absolute calm of Servon. At Domaine des Figuiers you control your pre-race dinner in a fitted kitchen, sleep in countryside silence and reach the start stress-free. After the effort, L'Écume's spa bath is perfect for reviving your legs. And for a group of runners, Les Pèlerins sleeps up to 8 — the night-before pasta party at home.
Our Cottages near Mont Saint-MichelGot your bib? Book accommodation immediately: with races capped at 1,000 runners and a comeback this anticipated, the bay will sell out early. Arrive the day before for bib collection and check how to reach your race start — they are spread across several towns (Fougères, Avranches...). Pontorson and its shops are 5 minutes from the cottage. Your supporters have the Mont, the beaches and Saint-Malo close at hand.
Activitiesmarathon-montsaintmichel.com
20-21 mars 2027
The weekend of 20-21 March 2027, after an eight-year absence. On the programme: marathon, half marathon, 10K, the Bay Trail (45 km) and the Mont Saint-Michel Ultra Trail (90 km), finishing at the dam facing the Mont.
Entry is by draw, open from 13 October to 3 November 2026 on the official race website. The marathon and trails are each limited to around 1,000 participants on the Mont side — hence the importance of entering as soon as it opens and booking accommodation as soon as your bib is confirmed.
As close to the finish as possible, somewhere quiet. Domaine des Figuiers in Servon is 10 minutes from the dam: L'Écume for a runner travelling as a couple (with a spa bath for recovery), Les Pèlerins for a group of up to 8 runners, with fitted kitchen and free parking. In March the bay is peaceful — but on race weekend it will be full: book early.
L'Écume to recover in the spa bath after the race, Les Pèlerins to house the whole group: two cottages 10 minutes from the finish at the dam.