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Park at the ‘Parking des Randonneurs’ on the right after the church, just before the Guye Bridge
(S/E) Leave the car park and head left along Rue de l’Église until you reach the D983. Turn right onto the departmental road, then, 100 metres further on, carefully cross this fairly busy road and turn left onto Route de Santagny.
(1) Turn right immediately and walk along the Place du Marché.
Carry on straight ahead along Rue du Teurcet before turning right a little further on onto Rue des Chênes. Pass the houses and you will soon reach a four-way junction.
(2) Turn left and follow the path through fields and pastures for 1 km until you reach a road near the village of Santagny, at a stone cross.
(3) Head right for a few metres, then immediately turn left onto another road towards Les Volans. Soon leave the road, which veers to the right, and continue straight on along a grassy path that is not regularly maintained. Stay on this path, which climbs for about 700 metres before coming to a perpendicular track.
(4) Turn right and rejoin the road a little further up at a place called Les Fourneaux. Turn left and follow the road to reach the Ferme des Volans just after theGR®®7joins from the right.
(5) Keep left to follow theGR®® and walk alongside the farm buildings before reaching the forest, 600 m past the farm, at a four-way junction.
(6) Stay onthe GR®® as it continues, then immediately ignore a path on the left. A little further on, the path splits into two branches. Keep to the left to stay on theGR®® and cross a heavily eroded section for about 200 m before rejoining the other branch of the path coming from the right.
Continue along theGR®® for a further fifty metres or so before leaving it, turning south onto the first path on the left. Ignore the cross-paths and, further on, reach a junction at the ‘Totem de la Mer de Pierre’.
(7) Keep to the left and continue southwards towards Chaleutre. After about 100 m, take a short detour to the right to enjoy a panoramic view of the site. Be sure to return to the path and continue southwards. Follow a slightly indistinct path between the rocks and you will soon come across the ‘Mer de Pierre’ sign at the southern end of the site.
The path opens up on the left-hand side. Continue due south and re-enter the forest. Pass ‘La Pierre qui tient l’eau’ and you’ll soon reach the Chaleutre crossroads.
(8) Follow the path which veers to the right and leads to a four-way junction near the Télégraphe.
Carry on straight ahead for about 200 m until you reach the Fork in the road. Ignore the path that turns right and head off to the left, starting the descent towards the south.
Ignore the start of a path on the right and stay on the track, which gradually turns left until it joins, further down, a wide cross-path in a clearing.
(9) Turn right, heading south again. Pass the first house on the right before reaching a fork in the path near a farmhouse. Turn left just before the farmhouse.
Ignore the start of another path on the left and continue downhill towards the east. After two sharp bends, you’ll see a view of Collonge-en-Charollais on your right.
You’ll soon pass a ruin before reaching another junction.
(10) Leave the Chemin des Teppes on your right and carry on straight ahead. Keep sharply to the right at the next two junctions. Cross a stretch of pasture and re-enter the woods at a four-way crossroads.
(11) Turn left onto a lovely forest lane lined with oak trees. Follow this lane northwards and keep well to the right when you reach a Fork in the road. You will soon cross the Sentier de la Résistance.
(12) Carry on straight ahead and join another path 400 metres further on. Head left and you will soon reach a four-way junction, still in the woods. Continue straight ahead northwards then north-eastwards until you reach a cross-path. Turn left onto this path before veering sharply to the right shortly afterwards to leave the woods.
(13) Turn sharply to the right and walk along the edge of the fields towards the east until you reach a place called Les Gaillets.
After passing the buildings, carry on along a tarmac track which soon turns left to join a road. Continue straight on and you’ll soon reach the next junction.
(14) Turn right towards the village and rejoin the D983 at the end of the road. Cross very carefully and follow the D983 to the left for a few metres before turning immediately right at number 39. Continue past the house, cross a footbridge over the Guye and reach the Hôpital crossroads.
Carry on to the left and return to the car park near the Old Bridge (S/E).
A bit disappointed with the Mer de Pierre because the vegetation has taken over quite a bit. It's still a nice little hike for locals.
Association / Club / Walk leader
Easy 
Visorando Member
