EndedHarmonie Mutuelle
Eco-santé 20K Challenge by Harmonie Mutuelle
Oct 12 – Oct 22, 2026
This challenge ended on October 22, 2026. You can no longer join it, but here are some you can.
Goal
Complete 20km in 11 days
Reward
A chance to win one of many rewards.
Prize open to
France. Anyone can join for the badge.
Qualifying activities
Any activity
See it on Strava 




