John, I can only recommend what was recommended to us as a followup to the Rhone River Cruise this summer. I have an acquaintance who does tours in Provence and will be acting as our tour guide. We will be visiting Chateau la Nerthe (appt. needed – 13 euros, tasting free) and Vieux Telegraphe. Others we have not yet decided upon but recommended include: Domaine Pegau, Clos du Caillou, Clos St. Jean, Chateau Mont Redon (all needing appointments). Also Domaine de la Janasse, Bastide St.Dominique, Domaine Font de Michelle, and Clos des Papes. Chateau Rayas is very difficult unless you are a substantial purchaser of their wines. Kathy Kallaus