Update....I went to the camp's website and they had a promotional video which showed, among other things, boys swimming and playing in the water with trunks on! I am hoping that the nude swimming has been discontinued, but then, they probably wouldn't show it like that on their website.

The thing is, this is a christian camp which boasts in its advertising: "Building Godly young men in a Christ-centered community, through wilderness camping". Nowhere on their website does it mention public nudity as being part of that program. Lazy Pirate said it best:
After reading your replies, I've decided that at the least, it was inappropriate. And at the worst, it created an opportunity for little boys to be exploited by a pedophile in their midst. I can't abide with that, and I never would have allowed it had I known at the time.

Jude

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In many stATEs an adult showing himself to children under the age of consent (13 to 18 years) is illegal. The act of wexposure by adults is in and of itself define as child abuse.

There are exceptions when dealing with family members, but in public with requirements that the children are exposed as well as the adults are exposed to the children constitutes abuse. If some states this is felony abuse.

No you are not making to much of this.

I'm not sure if it was abuse, but it was definitely inappropriate. VERY inappropriate, and if someone did that to my kid, I'd be livid!