I will be in Barcelona this summer and have 4 days to travel before needing to be back and wanted to explore the south of France.
What would be recommended between Marseille/Arles/Cassis/Avignon and what to visit, or any other locations that may be better? I have done some research and these locations seem the best, but as far as time management, and travel, is there any recommended advice?
I want to both see historical sites, but also be able to relax at some point and take a stroll. So in addition to any cities, things to do in those cities (or places that aren't worth going to). Anything helps! Thanks.