From Place de Corcelles in Saint-Martin-sous-Montaigu (village centre - salle des fêtes signposted), take Rue des Marronniers which climbs up on the left (red-white GR7 signposting), at the first crossroads, turn left and follow the first small road that climbs up steeply on the right (Rue du Clos du Paradis). You will arrive at an esplanade (picnic tables and benches) with walking signs ( 5 minutes from Place de Corcelles).
See transport to get there
From the walking signs, follow the small tarmac road uphill for 100 m. Then, turn left (towards "Le Theu"), on to the wide path that climbs steeply up to the summit of the hill, among the vineyards. Continue along the path on the left to follow the ridge and arrive (in 15 minutes) at the Theu viewpoint (wayside cross), from where you will be able to admire the Vaux Valley and its six winemaking villages.
Continue on the path (15 minutes) to the summit of the hill, through the woods: this is the start of the botanical trail which identifies about forty shrubs. On the way out of the woods, you will find some signs describing the local flowers and a viewpoint.
A gentle descent (15 minutes to the Blaisy fortified farm. .
At the bottom of the descent, take the first vineyard path on the left and follow it for 400 m (sometimes muddy). When you arrive at a small road, turn right and continue for 50 m and descend immediately on the left along a rural trail to a spring which supplies the wash house and the summer pool lower down. After a 10-minute descent, you will arrive at the campsite in the village of Saint-Jean-de-Vaux.
Walk 100 m around the campsite fence through the vineyards to a small road (only used by farm machinery). Turn left and walk 15 minutes along this small road to complete the circuit.