Current plan is to rent a gite on the periphery of the Vercors in France in September. I'll cycle there - either from the Channel or from further down via a Bike Bus drop-off, such as Orleans or Bordeaux - meet my other half, who will have driven down, and after the stay at the gite get a lift home!
Now all the questions of routing are starting to occupy me. The 'easy' options would involve following either the Rhone N-S or the the Canal du Midi W-E, but I really fancy exploring bits of the Massif Central - the rivers and gorges, for instance, from the Dordogne down to the Tarn. In practical terms, though, I probably need to decide on just one of them to follow west-east, and they all have their draws. Trouble is, I love being and cycling in mountainous/dramatic scenery, but my body just doesn't 'do' hills. Hence the search for the route of least resistance and the concentration on river valleys.