From the A7 motorway: Exit at Montélimar-Sud or Bollène, and head for Nyons.
Exit at Montélimar-Sud (50 km to go)
Upon arriving in Nyons, take the route d'Orange, proceed 1 km to the roundabout, and head for Saint-Martin, when you will be 500 metres from the Pays de Cocagne, which is signposted.
Exit at Bollène (35 km to go)
1 km before Nyons, at the first roundabout, take the direction of Saint-Martin. Once there, you are 500m from the pays de Cocagne, which is signposted.