Join the road to Saint-Jacques de Compostelle from the Church of Saint Bruno. The path will take you to the Priory of Chirens. You will then continue the path towards the hamlet of Plambois then to Blaune.
The section of the Camino de Santiago de Compostela follows the footpaths of the Pays Voironnais, traversing the hills between the towns of Abrets and Oyeu. It passes near Lac de Paladru, the 5th French natural lake of glacial origin, and it leads to the "Voie du Puy, via Piodensis" in Puy-en-Velay from Geneva.
In Rhône-Alpes to help you prepare for your trip, contact the Rhône-Alpes Association des Amis de Saint-Jacques.
For the Isère delegation, based in Voiron, Jacques Barjon and Bernadette Garcin will certainly be able to answer your questions.