Hi Tina
I'd like to second Des Quatre Vents. We stayed there a few years back on our first caravan holiday abroad. The site is quite remote near a small hamlet in open countryside. It is, however, very handy for Disneyland Paris which is about 15 minutes easy drive from the site. Adjacent to Disneyland Paris is the railway station and the centre of Paris can be reached directly from there, about 40 minutes by train.
We booked the site and our, cheap, ferry crossing and personal and breakdown insurance with the Camping and Caravan Club Carefree Travel for an inclusive package. We, also, bought our Disneytland tickets from them (no queuing for tickets at Disneyland). CCC were very helpful. We have booked our ferry and insurance with them every year since although we now book our sites independently.
Des Quatre Vents is a very pleasant site in an orchard setting - you could pick the apples! There is an outdoor pool and games room and a variety of sports are organised. Bread van and Snack Vans call regularly. The site owners are very friendly and speak good English. The site even stays open late for residents returning from the Disneyland late night parade.
Our kids loved Disneyland Paris. We, also, did all of the Paris sites travelling in several times by train. There are cheap family rail tickets available at the Disneyland Rail Station and, also, passes to the museums and other famous sites. We "did" the Eiffel Tour, Louvre ("Mona Lisa", etc, L'Orangerie (Monet's "Water Lillies" and a lot of other sites.
As to towing for the first time in France. We coped okay. In fact we travelled on as far as Switzerland and returned back via Germany, Belgium and Luxembourg without mishap. The AA and other motoring organisations will provide free excellent route plans on the internet for all European destinations and we've always used these - they give directions turn by turn in easy steps and are really foolproof.
We've been travelling to Europe every year now for about 7 years without any serious mishap and would encourage you to "go for it" - there was a first time for us all.
There are lots of other helpful posts about "first time in France" if you look back through this website.
Hope you go and have a super time
Regards
Tim and Cary