Vous devrez effectuer le circuit des 25 bosses en moins de 12 heures et valider votre passage aux 25 caches de la série.
Les sauvegardes intermédiaires sont autorisées et TRÈS conseillées!
Le temps de 12 heures est confortable et permet de faire des pauses, cela oblige seulement à faire le parcours dans la même journée.
Bonne balade!
Mammut8 played it on 6/18/2014
Rating: 
It was a great day of geocaching. After 9.5 hours of walking, climbing and searching we finally arrived, happy but tired.
Many thanks for this challenge and the caches!
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Kaatjekropslaatje played it on 5/31/2014
Rating: 
Deze Wherigo werd samen met De Woesten en Smurfel volbracht tijdens onze zoektocht naar "Les 25 Bosses".
Het werd een zware tocht maar meer dan de moeite waard om te doen !
Prachtige natuur!!!!
Groetjes uit België
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De woesten en Smurfel played it on 5/31/2014
Rating:
together with Kaatjekropslaatje I had a wonderfull experience while walking up and down the "25 bosses". It was a hard trip but we were sooo happy to complete it. thanks for showing us this great environment.
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Tourbillon played it on 1/9/2013
Rating:
Par le plus grand hasard, 4 jours après avoir bouclé la Sportive, l'occasion se présente de revenir sur les 25 bosses. Par contre la démarche se veut plus bucolique : pas question de courir. Et puis comme on a déjà logué toutes les tradis, on va s'en tenir simplement à suivre consciencieusement le tracé officiel. On aura donc mis environ 5h30 pour revenir au finish, ensuite, le temps d'aller débusquer l'ultime grosse boite et de retourner au parking, le bon cette fois, la nuit tombait. Encore une belle journée, encore merci aux concepteurs.
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mbts played it on 6/15/2012
Rating:
A couple of days ago, we started at # 1, but we had to give up at # 19, mostly because we started way too late. We didn't like giving up at all, it felt as if we could have made it, if only we had begun earlier. We decided to try again later this week.
So, today we parked our car at 9:00 sharp (it was an hour drive from our campsite). We headed to #25. Today we would only have to look for 8 caches (25-19 and "Grotte déserte"). That should make a big difference, because searching caches took much time the previous time.
We wanted to finish this Wherigo, and we did. It took us almost eight and a half hours to round the 25 bosses (including searching for the 8 caches along the way). Back home we walk a lot, also long distances. The fact that the Netherlands are flat makes a big difference in average speed though: 6 km/h vs 3 km/h 
Thanks for this great experience!
Statistics:
Total trip time: 8:25
Moving time: 6:00
Stopped time: 2:24
Total distance: 17.6 km
Elevation: 897 m
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