For those of you wary of conventional aires may be happier on these sites
These are commercially operated aires, where the company has taken over the operation of an existing municipal aire or part of a campsite from the town Mayor. These aires are available all year, you get a pitch in a secure area, electricity and the usual 'aire' services (but not full campsite facilities) for circa 13€ for 24 hours and use of the services (fill and empty) for 20min during that time. You can pre-book a pitch if you buy a subscription, you can stay as long as you wish, and continue to pay. It is necessary to buy a card (available at all these aires) for 4€ and pre-load it with funds, starting with a minimum of 10€. The card can be loaded at an aire or online. See the aires operated by this company below

https://campingcarpark.com/