Join Date: Sep 2007
My Motorhome: Frankia Platin I8400QD
Thanked 23 Times in 19 Posts
The rules say "no".
However, we did share an Aire (Les Menuires in the French Alps) with a caravan that looked as though it had been there for some time in August a couple of years ago. It departed after the third night of our stay.
At that location at that time, it wasn't a problem to anyone - plenty of other spaces available (less than 10% occupancy on the Aire).