Hello. Been loads. We used to take our boat down there. We stayed at La Ravoire. A lovely family run campsite, about ten mins walk from the lake. We went five years in a row! It’s at the Doussard end of the lake. Friends have stayed at La LAc Bleu, which is right on the lake, and gave it the thumbs up.
Let me know if you have any more questions, as I know the area quite well