Most younger folks aren't interested in paying to go to a place where they will be bored out of their minds with nothing to do. Then as soon as they whip out their phones to text, kik, Facebook, tweet, whatever with others they are pounced on for breaking the outmoded notion that they will let out the secret of who is there (signaling that we're supposed to be embarrassed to be there). So even if they did have something nice to say about the place they are prohibited by club policies from striking while the iron is hot. To say nothing of the Victorian rules that many places still post that punish males for being born male.

Basically the generation running resorts are out of touch with current trends and are shooting themselves in the foot. So go their campgrounds and resorts that they own. They want to hide away from the world so they got what they want.

The Florida Young Naturist gatherings at Sunsport packed in a hundred or more young people because they were organized by a group of 20-somethings. They had live bands playing current music, a huge inflatable water slide which is perfect for when you're nude, yoga classes, volleyball games, and basically offered more than shuffleboard and sitting around a pool all day long. They also kept the cost low as many could barely afford the travel to the event, let alone camping fees.

Ask your target demographic what they want and they will tell you.