The only thing I know about this sort of holiday is that swimming shorts as we know them in the UK are forbidden in pools
So you have to wear Spedo's or Budgy smugglers for all water related activities.
My mate went and he said it was really good, all the facilities you needed and nice weather. (he told me about the Budgy smuggler rule as well)
Was impressed with the Eurocamp site, it offers a good choice of accommodation from tents to houses.
My wife was having a search based on the accommodation type, everything she liked was 1000KM from Calais!
Just take a leap of faith and book it (well maybe after a few Trip Advisor searches!)
if your going to fly maybe look at going to Ile de Rè? Its a Island off the coast near to La Rochelle. We went for a drive around a few yeas ago really nice beaches. Euro have a place there
http://www.eurocamp.co.uk/book/bookonli ... esults.cfm