Route n°3 : This varied itinerary offers a wonderful foretaste of the mountain trails, ascending on the GR9 great hiking trail from the Tour sans Venin tower to take you close to the Trois Pucelles needles.
Les Vouillants - Sous les Trois Pucelles
Parc Karl Marx
38600 FONTAINEDiscover the descent along the old tramway track that used to lead from Grenoble to the Vercors plateau. Keep your eyes peeled in the tunnels.
Water: Désert J. J. Rousseau, Parc Karl Marx.
Free access.
All year round daily.
Tramway line C (Seyssinet-Pariset - Hôtel de Ville station). Walk 10 minutes to the Parc Karl Marx.