I visited Avignon as part of a South France road trip. We drove that day early from Mont Pellier to Avignon and got there around 11:30 after our stop at Orange first. We spend the morning exploring the palace which is pretty empty so you finish it quickly. The bridge nearby is a nice walk and we went through the old streets and finally had some lunch after which we drove onwards. Probably Avignon would be a great place to spend the full day but we had a itinerary to keep so we went onwards. Photo's and more on the blog: www.christravelblog.com/france-orange-avignon-arles-leg-3-of-our-south-france-road-trip-itinerary/