Course
42 km42 km
21 km21 km
5 km5 km
1.5 km1.5 km
Key dates
- ★Race daySun 15 Nov 2026
Date confirmed with the organiser · entry window checked by RunCalendar
About
Des Marais et des Bosses is a relay trail race in Saint-Herblain, Loire-Atlantique, organized by the Outdoor Club Herblinois. Teams of two or four runners cover a 10.5km loop through marshland and an old quarry near La Carrière, tagging off at the start of each lap until the full distance is complete.
Your next race, seen from above.
Save Des Marais Et Des Bosses to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save Des Marais Et Des Bosses to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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