Doesn't everyone who comes to Provence, want to find the real Provence?
Tarascon is an old place with narrow cobbled streets, shaded walkways, a castle, a legendary monster and has been immortalised in a series of novels by Alfonse Daudet.
It is also well connected with trains to/from Avignon, Nimes, Arles, Marseille, Narbonne and Portbou in Spain.
Highlights
An 'authentic' Provencal town off the beaten track
Station stroll ideas
If you have an hour or two to spare waiting for a train, why not go for a wander?
I've also made a downloadable PDF and accompanying google map which will give you a feel for the place and take in the sights.
Guided tours
Nope.
Luggage
I'm not aware of anywhere that you can stow your luggage, however, you could check for a place with the nannybag app.
Getting there
Tarascon is in between Avignon and Arles taking around 15 mins and 8 mins respectively.
Useful links
Tourist info: The town website (http://www.tarascon.fr/) includes a tourism section which lists out hotels.