When staying in Provence take one of the afternoon tours from The Best of Provence.  Laurent is a great guide. See the ancient city of Gordes built right into a mountain.  See the villages of Les Baux de Provence and Rouisillion.  Both are charming with character of their own.  DO NOT MISS SEEING PONT DU GARD>  This incredible piece of roman architecture is mind boggling.  It is a roman aqueduct that was built centuries ago without mortar of any kind and is still in incredible shape today.  Fall in love with Provence. Avignon is right in the center of it all.