A problem can arise with your dive certifications (AOW) due to the French regulations about diving. If you were CMAS ** diver, you'd be allowed to dive on all the aforementioned wrecks with a guide (down to 45 meters). These are mostly deco dives, with typically 15-20 minutes of bottom time at 40 meters, and typically less than 15 minutes of total deco time. For these dive profiles, in France, one needs not to have tek training or certifications (apart from CMAS ** diver which is not a "tek" cert) unless one wants to do his deco on nitrox (most French divers dive air and do their deco on air for these dive profiles).
If you are not a CMAS ** or *** diver, your certifications (even AOW) will not be recognized in France and you'll be considered as a CMAS * diver (= PADI Open Water diver), limited to 20 meters and always guided. Most of the good wrecks are deeper than that (typically 30 to 40 meters). This will be frustrating.
You'll have two options in that case, if you want to dive these wrecks :
- become a CMAS ** diver in your country or in France (there is a crossover from AOW to CMAS**; for an AOW diver, CMAS** is mostly about bringing an unconscious diver from -20 meters back to the surface at the right ascent speed)
- provided you are experienced and your certification is high enough, and with some check dives, if you are OK underwater then the dive center has the right (but no obligation) to consider you as a CMAS** diver - but this "equivalence" of level will be valid only in this dive center, you'll get no C-card. And there is no guarantee, it really depends upon how you are underwater and how the dive center feels about you.
All this can make things a bit complicated for non-CMAS foreigner divers. So I suggest you google a few dive centers ("centres de plongée") in Marseille, Hyères or Cavalaire (there are many), check those who can teach in English, and see with them how you can do. A dive center that would be both CMAS and PADI will probably be the best choice because they know about PADI and the crossovers. Google also the names of the wrecks, you'll find lots of info (including videos) about them on the Net.