If you arrive by Tours: take the left bank of the Loire, go through Montlouis-sur-Loire, Lussault.
When you arrive at the large avenue lined with plane trees, turn left at the first street after the store "Rive gauche Décors".
If you crossed Amboise by the left bank of the Loire, when you arrive on the avenue lined with plane trees, turn left in the second street after the garage MOTORSPORTS