France - "off the beaten tracks - The 3 B's!

If you have visited France before, have done the Paris - Provence - French Riviera itinerary, I'd like to suggest the following for your consideration:
BORDEAUX - BIARRITZ - BILBAO
Fly into Paris and take ( direct from the airport) the TGV (Bullet train) to Bordeaux ( 3 hours). Spend three nights at the new and wonderful Regent Grand Hotel ( in the heart of Bordeaux). Rent a car with chauffeur and spend the whole day in the vineyards( 30 minutes away),choose from (my favorite) the Village of Saint Emilion and it's medieval city or the Medoc and the Chateau road and sauternes with the best dessert wines to taste.
The enjoy 2 days in the city.
On the 4th day, pick up a rental car and drive to Arcachon, one hour away and enjoy this seaside resort and oyster breeding area, then climb the Pyla Dune,the biggest sand dune in Europe.
Then drive to Biarritz (2 hour drive away) and check in at the luxurious and famous Hotel du Palais. Spend 3 nights there and the basque country surrounding it.
Finally drive to Spain, San Sebastian and Bilbao ( 1 hour away) and on the way back try some local tapas.