I have just heard of (and read a positive report about) a naturist gîte that had so far escaped my notice in Southern France. It is inland from Cannes and Fréjus, is called La Paillote and has a website (Google: gite La Paillote). It sleeps four (only one flat), has a pool (with solar heating in Spring and Autumn), a jacuzzi , an infra-red sauna and a massage table (all available all the year round).
It sounds good, but I do not know it personally.