This fine is a threat to many holidaymakers – it can cost up to 1,500 euros

Not all vacationers approach their summer in the same way. There are those who return to their second home, those who head to the family home, others who prefer the comfort of a hotel or a vacation rental. And then there are those who, increasingly numerous—by preference or budgetary constraints—choose to travel with their tent. Some pitch it on the ground, but others prefer to attach it directly to the roof of their car so they can camp wherever they please. But behind this impression of freedom lies a trap that many are unaware of and which can be very costly. A single night in the wrong place can lead to a hefty fine of up to €1,500.
In France, installing a rooftop tent is indeed subject to very strict rules. Just because you're parked in the parking lot of a beautiful sandy beach, by a lake, or on a mountain path doesn't mean you can spend the night there freely. The law strictly regulates wild camping, even when it involves a vehicle. Some places—such as natural parks, seaside areas, or protected areas—are strictly prohibited from overnight parking when the intention is to sleep.

Many vacationers believe that staying in their car or on its rooftop isn't considered camping. Wrong! As soon as you spend the night in your vehicle or in a tent pitched on it, it can be considered illegal camping if the location isn't authorized. And local authorities are becoming increasingly vigilant, especially during the tourist season. Law enforcement checks are more frequent, and fines are pouring in.
To avoid unpleasant surprises, it's essential to do your research before each stop: choose areas dedicated to camper vans or campsites, even for just one night. It will cost you a few euros, but you won't have the unpleasant surprise of being woken up in the middle of the night by gendarmes or police officers. The result is a fine so large that it will certainly ruin your vacation.
L'Internaute