Distance: 8.5 km
Duration (average) : 2h50
Level: Orange level - Quite difficult
Elevation: 609 D +
Departure: Voiron
Pebbles, Earth, Hard surface (tar, cement, floor), Gravel, Not suitable for pushchairs
Marked yellow PDIPR
In the countryside, Motorway exit within 5 km, In the forest, In town, Public transport stop within 500 m, Pond within 5 km
Recommended period (s): Autumn, Summer, Winter, Spring


An immersion in the Voironnaise countryside a stone's throw from the city: green hills and meadows, discreet hamlets interspersed with pleasant undergrowth and even a small unknown peak with a beautiful view of the Western Charterhouse.

From the Garenne, climb through the last houses of Voiron by a short climb to reach a pleasant path in the undergrowth leading to the belvedere of Regardou. A landscape reading table and a picnic table overlooking the city await you. Leave behind the climb to La Vouise and continue towards the charming hamlets of Vouise then Tolvon before tackling the climb to Croix Saint-Denis via a pretty forest path. From the top of this hill, you will enjoy a beautiful view of the west of the Chartreuse. Go down the northern slope to the hamlet of Paris then Custodi to reach a forest path joining the hamlet of La Grattonnière. Then begin a long descent towards the hamlet of Orgeoise to return to your starting point.

Topo/step by step: 
Stages of the circuit with the name of the signposts to follow: - Departure: La Garenne - Le Regardou - Hameau de Vouise - Tolvon - Croix St-Denis - Le Paris - La Grattonière - Les Grattons - Hauts d'Orgeoise

Points of interest

Belvédère du Regardou

Regardou Belvedere

La Croix St-Denis

The St-Denis Cross

8.5 km 2h50 quite difficult 609 D +

to report a problem



Free access.

Equipments & services


  • Picnic area.
  • Parking nearby

Home of animals

  • Animals accepted: No


Departure car park: at the intersection of rue Marie Curie and rue de la Martellière in Voiron.
Public transport stop "Gymnase la Garenne" nearby.

Contact Informations

The St-Denis Cross

1 rue de la Martellière

38500 Voiron

Getting to the starting point