Park in the square opposite the Serres tourist office.
(S/E) Cross the D994 to climb the stairs in old Serres under the rocks overlooking the village. Take Rue du Portail on the left, then Rue de l'Auche on the right. The path leads to the Bonsecours Chapel clinging to the Rocher de la Pignolette.
The orientation table near the chapel seems rather optimistic about the elevation gain (730 m instead of 780).
(1) The trail continues in a series of switchbacks along Chemin de la Chapelle towards Tombeau du Juif.
(2) Then head to Rocher Pointu.
(3) Next, the well-marked trail runs along the Crête de Fontarache between rocks, boxwoods and oaks. On one side is Provence with the Buëch Valley and Lake Germanette, and on the other side are the Dauphiné Mountains with the Petit and Grand Buëch Valleys.
Very soon, we arrive at the Col de Saumane (1030m). This is a nice spot for a short break.
(4) Do not take theGR®®94(we will take it on the way back) but follow the signpost towards Rocher de Jardanne.
(5) Pass by the Source de l'Ollagnier and continue on the left towards Rocher de Jardanne (1352m).
(6) At Rocher de Jardanne, continue along the ridge westwards to Serre de la Bouisse (1500m) with a superb panorama from Ventoux to Grand Ferrant via Pic de Bure, Aujour and Ceüze through the sharp limestone pavement and boxwood.
This is a nice spot for a snack.
(7) Retrace your steps to the Col de Saumane.
(4) From there, take theGR®®94on the right downhill, which takes you back to Serres via the Saumane chapel.
(8) Pass the school with its unique sundial in the Hautes Alpes (on the school façade).
(9) The return journey is easy, taking you through the streets of the village. Admire the magnificent door of the town hall (S/E) as you pass.