We will be in Provence for 5/6 days in the middle of June. We are in Clermknt for a business meeting, then taking the train to Lyon to rent a car. We think we will make Vaison la Romaine our base camp, but we haven't booked a hotel yet. On a previous trip, we went to Avignon, where we took days trips to Aix and Nimes. What are our "must-sees/shouldn't miss"-- we want to see the sights as well as tour vineyards. Thanks!