From Neuchâtel :

Take the A5

Follow A5 towards Chemin des Maladières/Route 5 in Bevaix. Take exit 6-Bevaix and leave A5

Follow Route 5 towards Rue du Débarcadère in Saint-Aubin-Sauges

From Yverdon:

Take the A5 to Montagny-près-Yverdon and leave at Rue des Jordils, Rue Saint-Georges, Rue Edouard-Verdan and Route de Sainte-Croix

Follow the A5 towards Route 5 in Vaumarcus. Take exit 4-Vaumarcus and leave A5

Follow Route 5 towards Rue du Débarcadère in Saint-Aubin-Sauges