
20 km from the Sonian Forest WALK
90%
off road
3
Waves
Sports Centre
Sonian Forest
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08:30-09:30 / 09:30-10:30 / 10:30-11:30
on the course
Finish before 15:30 / 16:30 / 17:30
20 km de sentiers, de nature et d’évasion au cœur de la Forêt de Soignes, aux portes de Bruxelles.


the following brands
We're proud to partner with leading brands who share our passion for adventure, performance, and pushing beyond limits.
The Sonian Forest Marathon is a great opportunity to explore this exceptional natural area… but not the only one! Throughout the year, the forest can also be discovered through walks, nature activities, heritage tours, and local initiatives. Want to extend your discovery before or after the marathon? Head to the official Sonian Forest website to plan your visit and discover the activities on offer.
What to bring
This gear is mandatory. Time penalties or DSQ for violations possible
Bib worn visibly
Bib worn visibly
Cup with a minimum capacity of 15 cl
Cup with a minimum capacity of 15 cl
This gear is highly recommended for your safety and comfort.
Walking shoes
Walking shoes
Clothing suitable for the weather conditions
Clothing suitable for the weather conditions
Livio Live App
Livio Live App
GPX track loaded on a watch or phone
GPX track loaded on a watch or phone
Phone charged
Phone charged
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Key times

