A 3.8 km long circuit at an altitude of 1800 m, between Thyon and Les Collons. The educational trail and information panels have been designed by schoolchildren. They cover five topics in German, English and French: Marmots, Birdsong, Bears, Ants and Green Energy. You should allow two hours for the walk and games; the starting point is by the tennis courts in Thyon; halfway round, you can have a rest at "Gouilli d'en bas" where there's a pond.
The careful planning of a tour will ensure that you also derive the maximum pleasure and enjoyment from it. Please take the time to contact the local information centre and enquire about route and weather conditions before setting off. Your intended trail may be fully or partially closed, depending on the time of year and weather conditions.