hello---we stayed at la baie last year for 10 days---it's a nice site, with good size pitches,clean toilets and a good pool. ---as there are some static vans and tents, try and select a pitch away from them if you want peace and quiet---nice beach across the road, along with a shop and restaurant. There is a small fresh water lake nearby, a good breeding ground for the mossies, so take whatever "anti-bite" cream you prefer----you WILL need it.
The town itself is nice, with plenty of pricey shops and nosh houses---(The seafood is excellent) and there is a market twice a week. Visit Auray and Carnac, both excellent days out particularly Auray. There is a Lidls in Carnac where we shopped----saved a lot of pennies by going there---- also there is a supermarket just as you come into carnac--cheaper fuel as well.
hope this helps, let me know if you need any more info
Oh yes--the sun shone for the whole of our stay, while the rest of France was in a deluge !! so i hope you have the same