CamperVan(Bobil) Travelling through France and Switzerland

Hi All,

I am planning to do a camper van trip(4 adults and 3 kids(6,2,0)) in Last week of June and First Two weeks of July. I am primarily looking for campsites and a use France Passion in between for local experience.

But regarding the camping many has waned me that the camp sites get easily full during the period I chose. Problem for me is I am doing the Camper Van holiday for the first time and not sure where I will be on certain dates. :(

Few questions that I have are:

1.Should I be reserving camping places up ahead?

2.Is it safe to park in the Aires(Municipality ones)

3. Is it possible to park by the cities with Campervan? I will try to avoid major cities but I would like to go to see Calanques( from Cassis) and Also in Arles to see the bullfights in Early July.

4.I have a camping van having height 3.1 meters but under 3.5 tonn. Will this be very expensive to drive using the toll roads in France?

Thank you in Advance for your responses.

Jose