There are lots of municipal sites all over France - check out the website http://www.camping-municipal.org/
HOWEVER, and it's a big however, campsites in the area you want to visit are likely to be very busy indeed at the end of July and into August. It's absolute peak season in France, and you may have to go well inland to find a site which has spare pitches during that period. It's also an area which at that time will be manic with traffic, and to me someone who wants quiet campsites isn't likely to be the sort of person who appreciates queueing in traffic for hours to get from one place to another, nor all the 'glam and glitter' which you'll find in that area.
I would look much further inland and just have an early start and a day trip down to the coast, but I'm sorry I can't recommend campsites because it will be just a question of looking through what's available and checking whether they have free pitches. It certainly won't be easy to just 'turn up' as you can do further north.
We were at Camping de Vaudois down at Roqubrune-Sur-Argens close to Frejus, back in July last year.
It was our first visit to this campsite, and I was surprised how quiet it was for the time of year, in fact even Frejus was quiet compared to what I have experienced in the past, there were many empty pitch's but they all seemed to have been pre-booked with a little notice advising that the pitch was not vacant.
So I don't think just turning up in July would be a good idea, the campsite had no animations whatsoever, the swimming pool was gorgeous with not a slide in sight.
There are a couple of reviews on here, but have a look at there website, it does read like the type of campsite that you are looking for.
That part of France, at that time of year, is probably the worst possible combination ... I'd certainly be inclined to book ... and, probably avaoid the coastal sites as Val suggests. Here's the municipals link
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Staying a bit in land wouldn't be too much of a hassle as we take our Vespa on the back of the motorhome so we can pitch up and stay put but still travel around.
Has anyone stayed at the municipal site in Menton?
Hi Bee
Les Romarins in Maussane-les-Alpilles is a municipal site in the village, because of this situation it has to be quiet. It's not in the area you mentioned but is very handy for visiting many great places.
I think you will find Nice, Cannes, St Tropez area very, very busy and anything but quiet!
Good Luck
Jan
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