Honestly, I didn't see a lot of Toulon. Firstly, it is massive, in that sprawling suburban way. Our glorious Airbnb was right in the old town and across the street from the beach; so there already wasn't much reason to stray far--and then I got nightmarishly ill. Thank goodness the apartment was so perfect. I spent a lot of time there.
This I do know. If you go to Toulon, visit the old town, the Rue l'Amalgue, specifically . Rise early in the morning, climb to the top of the hill, and order an espresso to sip outside. Next door, you'll find the vegetable stand. Don't pick up your own veggies! The shopkeeper will do it for you. Then stroll down to the boulangerie. Then the poissonerie. Then the pasta shop. Collect your goods, fresh and local, right along with all the other leisurely shoppers, and it will be the most authentically French morning you'll ever have, I think. (So, be sure to brush up on that shopping market French!)