I went to cap d'agde many years, until 2015. I guess it's the biggest nudist village in Europe, or one of the biggest-
There is a part, with the camping, and another part, bigger, with the town (hotels, shops, apartments, markets and so), and the beach, 2km long, with thin sand and sea (cold); everywhere you can go naked, no restrictions, also in the markets, and that can be very exciting and funny.
I'd split cap d'agde in 2 parts.
There is the genuine nudist part, almost 70% of the beach and the camping, with families, kids, quiet people, there just to be naked.
The other part is crowded by couples, mostly swingers, and it's frequent sexual acts in front of everyone. You cannot go there casually, so nothing happens in front of kids or so. Everyone knows what happens there, and if a minor go in the "restricted area", immediately get is stopped.
In the night, late evening, at the village, there are some swinger clubs and so, and many people dress sexy (someone also with bsdm clothes) and bizarre.
It depens what you look for, if a sexual holiday, or something more quiet, but you can find both; there are many families with kids, especially in the camping -with the kids club (every evening there is some show, music, theatre, magicians, movies).
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