I have nothing to add but I have to disagree with jkomo about Avignon. I first visited whilst Interrailing in summer 1987. Stunning town loved every minute of our camping stay there. Apart from an eight-hour thunderstorm that had tents floating downhill!
I visited again in 2016 and apart from the area around Le Palais du Pape, the place is a shithole.
I drove three hours from Gassin to get there, just to show my wife. What a waste of everything.