GRELLY 2027
A self-supported off-road bikepacking adventure from Herbeumont in the Belgian Ardennes. Pick one of several loop lengths.
Grelly 2027 475 km runs from 20 May 2027 to 23 May 2027, starting in Herbeumont, Belgium. The route is 475 km. Support: self-supported.
- Distance · 475 km
- 475km
Entry is handled by the organizer. Confirm places, prices and requirements before paying.
Choose your route.
5 options in 2027. Each has its own dates, course facts and entry.
2027 edition / 475 km
- End date
- 23 May 2027
- Support
- Self-supported
- Surface
- Off-road
Edition notes
- Routes still being built
- Climbing from about 6000 to 14000 m
Training plan · MeepMeep
Train for the start line
MeepMeep, Ultracycling Hub’s own training app, builds a free indoor plan that counts down to this start, within the hours you have each week. It runs in your browser, with no account.
- Start
- 20 May 2027
- Distance
- 475km
Opens meepmeep.cc with the start and distance filled in. Check them against the organizer before you plan. How MeepMeep works with the Hub →
Email updates
Follow this event
2027 (375 km) starts on 20 May 2027. We’ll tell you if a published fact changes, and when it’s on course.
- Entry opening and closing reminders
- Changes to dates, route and fees, a day after the last edit
- New editions, and the start
Sources & checks
Last checked . Event details can still change.
Status may be out of date. Check the organizer for the latest information.
Verified by the Hub, 10 Oct 2026. We compared this listing with its sources on that date. Not a recommendation.
Verification details
Still being verified
Climbing, Time limit, Entry fee, Entry closing date. Suggest a correction
Sources · 1
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