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Arrive in the village of Hostun via Avenue des Marronniers, which is opposite the church.
Opposite the town hall, park in the small car park next to the walnut oil mill.
(S/E) Take Avenue des Marronniers and head towards the church, go around it on the left, pass in front of the school and continue along Rue du Charron. At the stop sign, cross the road to find "Allée de la Faneuse" opposite, and go straight ahead along the small gravel lane.
Cross the stream via a small wooden bridge and head towards the cemetery. At the road in front of the cemetery, turn left and continue straight ahead at the first crossroads; a little further on, turn right (Route Flandrin). After the lodge, the path is no longer paved. Continue until you reach the paved section again and turn right until you reach sign no. 13 for "L'Hostunoise" for a glimpse of the old castle mound.
(1) Return to the crossroads and turn right towards "Les Guerbys - la Baume-d'Hostun"; a little further on, the small road descends. In a left-hand bend, do not follow the yellow markings on the right (Montée des Paillonnières) but continue down the small tarmac road. Further down, pass "Chemin des Nans" on your left, then "Chemin des Tortelons". Continue down the main road (walnut trees on your right and old chestnut trees on your left).
(2) At a left-hand bend, you will see the "Earl des Actes" sign. Follow the small path that branches off to the right. 50 metres further on, pass the farm on your right and continue straight ahead on the grassy path.
Continue for about 1 km, surrounded by walnut trees, until you reach a farmhouse bordering the path. After this house, the path is paved. Continue until you reach a crossroads (signposted "Chemin de la Verdure"). You are now in the village of "La Baume-d'Hostun".
(3) Turn left onto the street that goes downhill, then turn right at the intersection onto "Rue des Charmilles", which will take you to the church and the wash house. At the wash house, go up to the right (Montée du Cimetière), continue straight ahead on Chemin de la Draye. The road becomes grassy and leads to Place Riquet Broc. To the left of the yellow-plastered house, continue along Chemin de la Draye, which becomes a footpath a few metres further on, then a paved, uphill road.
(4) At the end of the path, turn right (Montée du Château), then right again, pass a wash house and continue to the "Le Château" signpost, where you will find yourself at a crossroads. Take the "Chemin des Paillonnières" on the left. About 250 metres further on, look for a yellow marker on a concrete element, which invites you to turn left.
(5) The path climbs slightly. After 80 metres, continue along the path that turns left (do not take the path on the right - silhouette of a leprechaun). There is a fork 100 metres further on, with another small sign with a goblin on it. Continue along the main path to the right. After 150 metres, stay on the main path, choosing the right-hand option. After passing an area with broken trees, you will come to another fork. Take the left-hand path, which will lead you to a field of young walnut trees.
(6) Look for a farm (it is abandoned). Go around this walnut grove on the left (no marked path), follow it, and arrive just above the abandoned farm. Continue south on the well-formed path that descends slightly (without worrying about the yellow markings here). At a well, 150m further on, turn opposite (leaving the path that leads to the farm on your right). After 100m, you will reach the signpost for "Les Sablons".
(7) Continue straight ahead, from there, follow the yellow markings and the "L'Hotunoise" signposts. Reach the "La Roche" signpost; enjoy the view of the Isère valley, take the "Les Coqs" path. The L'Hotunoise markings will take you to the Church of Saint-Martin d'Hostun.
(8) Cross the small square with the fountain, pass in front of a "Café-Tabac", 50 metres further on, continue along the small road opposite (Combe Blanche) which descends slightly, then climbs again to a crossroads with a signpost marked "La Rey-Combe Blanche".
(9) At this crossroads, turn right and 80 metres further on, take the path that goes under the road on the right; pass a shed, arrive at a house and continue to follow the yellow markings.
(10) At the "dead end" sign, follow the yellow markings for "L'Hostunoise". When you reach the tarmac road, turn right, then left at the stop sign. Pass by the church, then in front of the post office and the hairdresser's. Turn right to arrive at the starting car park (S/E).
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