Start from the car park near the town hall in Dampierre-sur-Loire, entrance via Chemin des Quétiers (near the campsite and the motorhome park).
(S/E) Leave the car park and head towards Route de Montsoreau (D947) in the direction of Saumur; follow it to the right for 50 m, then cross it carefully to take the narrow, steep hillside path to join the GR®3.
(1) Follow it southwards to the cross at the junction with the D205.
(2) Cross it carefully and follow the GR®3 north-east through the vineyards of Souzay-Champigny, which leads to the church at Parnay: a viewpoint over the Loire.
(3) Follow the GR®3 to Parnay Sud and join Rue Valbrun.
(4) Follow it to the left for a few dozen metres and, at the three-way junction, turn right into Rue des Bideaux, then right again into Rue de la Cave Forte. Follow the GR®3 south-west until you reach a path on the left through the vineyards, where you leave the GR®.
(5) Take this path to reach Val Hulin PC 62 and rejoin the GR®3. Follow it to the left heading north.
(6) Turn right at the signpost and continue to Place de la Mairie de Turquant.
(7) Walk down the street, then, at the stop sign, turn right onto Rue de la Vignole, passing the Manoir de la Vignole whilst admiring the façades of the troglodyte houses. Turn right into the vineyards.
(8) Join the GR®3, pass the old mill and then the Route des Mazières, which climbs up from Montsoreau.
(9) Cross this road, then take the path on the left to reach the Arceau car park and cross it. Follow the River Arceau and walk past the Maison du Parc.
(10) Cross Avenue de la Loire at the pedestrian crossing and head to the banks of the Loire. Make use of the facilities (tables and benches) for a picnic. Continue left, following the left bank of the Loire along the shared cycle and footpath, cross a bridge over the Loire and then pass under the power lines. Continue along the narrower path, still shared with cyclists, and reach the Souzay car park.
(11) Carefully cross the Route des Ducs d'Anjou (D947), turn right onto the path leading towards the school, following the signs for "Rue des Troglodytes". Follow the signs and the tunnels that lead back down to the Route de Montsoreau (caution: shared space with cyclists).
(12) Carefully cross the Rue des Ducs d'Anjou again to join the cycle path that runs alongside the road and leads back to the car park (S/E).