Get picked up at your hotel or other accommodation in central Avignon by your private driver in a comfortable 7- or 9-person van. Enjoy the scenery as you drive out of the city toward Valensole.
Stop at one of the biggest lavender fields in all of France, where you'll get a chance to wander through the plants for about 1.5 hours. Breathe in the calming scent and snap photographs of the beautiful scene. Stop for something quick to eat, if you like, at one of the little snack bars (own expense).
Get back into the van and continue to the next stop, Moustiers-Sainte-Marie. Take a break for lunch (own expense) at any of the restaurants, after which you'll have time to stroll through the town on your own. You'll have about 1.5-hours in Moustiers-Sainte-Marie before you head to the last stop of the day.
Arrive at the Lake of Sainte-Croix for a 1.5-hour stop. Take a walk along the shore, rent a kayak to paddle out into the lake, or go for a refreshing swim. At the conclusion of the day you'll be returned to your hotel in Avignon.