(S/E) Park in the small car park at the entrance to the village of Boudes (very full on Sunday afternoons).
Pass by the Old Fort and the Little Church, then cross the Couzilloux.
(1) Turn right at the top of the road opposite the cross, then continue uphill for 500 metres.
(2) Turn left. This is where the Vallée des Saints begins: the little Colorado of Lembronnais.
The path is well maintained. At the bottom, you will find the Bard gas spring and its Gallo-Roman basin.
(3) Descend to the left towards the very typical village of Bard.
(4) Turn left to return along the vineyards towards Boudes (S/E).