Registration is free and easy!
You can run or hike this challenge between January 11th and March 31st, 2021 whenever and with whom you want. If you are competitive, give us your time and we will put you in our 2021 ranking, which will be final on April 1st !
A track ( from 10km - 36km ) through Belgium, the Netherlands or Germany ! Or do you go the challenge and take the complete Three Frontiers route of 36km? This route is 90% off road and you can do it running or walking !