Since you have experience in the nudist world, I have to ask -- have these 'teen only' nudist camps been around for a long time? I always thought it was a very family-oriented sort of practice that would not be inclined to segregate the teens into their own camps.
Although I visited the local clubs or private parks which is what they are I have never visited a teens only club or resort. Almost every park I visited were family orientated. Some will not let single males join. You can visit almost any Nudist camp or club in the USA by joining the ASA which stands for The American Sunbathing Association, and can visit a few times before joining. My impression of the camp in question, is it would be set up as summer camp for teens. For example I wanted to send my nephew and niece to the John Birch Society's summer camp but could never arrange it. The best thing about the camps is the people there are the nicest you could ever meet. You are literally joining a family when you join a club. A larger club will have year round events even up here in the northwest. The hardest thing is getting up the courage for the first visit after that it's just plain fun. Every one goes, fat, old, young, skinny, and yes beautiful people. I look at it as some people go hunting some never will, some golf or rock climb and some never will.