We have been to this campsite on Ile de Re' 5 times.
https://www.campdusoleil.com/campsite-re-island-ars-en-re
It is a short walk to a small beach and to Ars (Always tickles me) which has a market, restaurants and a nice little port. The site has a pool and a small restaurant/bar. (serves warm croissant in the morning)
It's a nice cycle to the lighthouse (Phare du Baleine) and the 'Conche' beach which is fabulous. San Martin is a short drive away and there are other towns a short cycle away (St Clement(with a great little market for fresh olives etc), Les Portes and La Couarde (with a bigger but slightly more tacky Market)
If you like cycling this is a great location, but beware of the wind. There is usually a predominant westerly which picks up in the evening in the summer which makes La Couarde a proper schlep on the way back cycling.
The pitches are typical french style segregated by tall bamboo and the facilities are always clean and functional.
There is also a supermarket which is a short cycle away.
This picture which is on their website is actually our pitch pre VW with our Outwell tent and Gazebo setup.
Rental Standard évasion camping pitches on the Ré island. You will appreciate our 'Standard Évasion', pitches, shaded or semi-shaded. Have a good time in a pleasant and green setting. Description surface 100m2 + picnic table wooden + 1 deckchair + Wi-Fi access + 2 bicycles Typify authorized...
www.campdusoleil.com
It's pretty much a park the Van and cycle everywhere location.
Needless to say I kind of like it there!