If you don't mind being a 20 min drive from Saumur, we are addicted to Camping Vallee des Vignes (check it out in Alan Rogers) - pretty small - about 70 pitches - friendly owners (English couple, John & Lesley). There are a dozen or so statics, which seem mainly to be let to / owned by French holiday makers, pool on site, excellent showers etc. - depends what you are looking for though! There are activities - quiz, degustation at local vineyard, local wine merchant coming in, etc about every other night. Small cafe / bar on site, can order in bread for next morning, walking distance to village (full of wine producers!)