From Place de Corcelles in Saint-Martin-sous-Montaigu (village centre - salle des fêtes signposted), take Rue des Marronniers that climbs up on the left (red and white markers for the GR7), and turn left at the first junction and then follow the small steep road up on the right (Rue du Close du Paradis). You will arrive at the esplanade (picnic tables) with footpath signs (50 minutes from Place de Corcelles).
See transport to get there
From the footpath signs, follow the small tarmac road upwards that ends in a dead-end.
Climb for about 20 minutes to the ruins of Montaigu Castle (unaccompanied visit - beware of falling rocks). The entrance to the castle is indicated by a chain which walkers are authorised to cross.
After visiting the ruins, return to the entrance and then, just after the entrance to the castle, take the path that descends to the valley and pass the large winemaking estate (le Meix Foulot), until you arrive at a small road that leads up to the hamlet of Touches (15 minutes from Montaigu Castle).
Spend some time in this hamlet with its exceptional 12th century chapel and do not miss the view over the Mercurey valley.
Return to the entrance to the hamlet where you will find a bench at the start of the path (viewpoint over the very traditional hamlet of Chamirey where there is a beautiful 18th century private castle) and take the path down towards Chamirey, between the vineyards and past the wall of the first house (30 minutes - no signposting, but the hamlet of Chamirey is always visible).
You will arrive at the small road leading to the very peaceful hamlet of Chamirey: admire the pretty stone houses and the 18th century castle (private).
Follow the small road to the STOP sign and continue straight ahead past the sports ground and, after about 300 m, take the first road on the right.
Continue to the cemetery (500 m), pass the wayside cross and, at the STOP sign, turn right and return to Place de Corcelles 300 m away (about 25 minutes from Chamirey).