(2) He shows his intimate parts for the purpose of arousing or gratifying the sexual desire of the actor or of another individual under conditions where the actor knows or reasonably expects he is likely to be detected by an individual who because of mental disease or defect is unable to comprehend the sexual nature of the actor's conduct.
This subsection is, in addition, immaterial to naturists because, as I comprehend it, sexual gratification is not taken at your events. If anyone under the age of 13 years old is present, or anyone with diminished capability exists, you should be especially strict about regulating anyone pleasuring themselves or others inappropriately. In any event, the offender is not the man who hosts the party, but the individual perpetrating the action.
Statute: NJSA 2C:24-4 Endangering welfare of kids.
Description: measure.
This especially includes nudity but only when nudity is depicted with the aim of sexual gratification. That is not the purpose of a naturist occasion. Again, the potential Defendant here is the kid's parent, not you, so long as you are not promising to supply any form of childcare service.
Legislative Act: NJSA2C:33-12.2. Sexually oriented business, pain; offense
2. a. As used in this action:
(1) "Sexually oriented business" means:
(a) A commercial establishment which as one among its principal business purposes offers for sale, rental, or exhibit the following:

So long as you'ren't selling any depictions of nudity, this doesn't apply to you.
Statute: (b) A commercial establishment which regularly features live performances characterized by the exposure of a "specified anatomical area" or by a "specified sex," or which regularly shows films, motion pictures, movie cassettes, slides, or other photographic representations which depict or describe a "specified sexual activity" or "specified anatomical area";
As long as there aren't any performances or films shown at the event, this doesn't apply for you.
Statute: NJSA 2C:34-2.Description: mature
Description: section:
Description: details:
Description: genitals,
Description: and
Description: interest.
There is nothing obscene about the human body. It has been created in many Courts, such as the US Supreme Court and New Jersey's own Supreme Court. This is not going to impact you.
Statute: NJSA 2C:34-3. Obscenity for individuals under 18
Description: task.
It doesn't care whether the content has artistic or educational value and it contains nudity paired with sensuality with sufficient impact to concentrate prurient interest on the area or action. https://fanslations.azurewebsites.net/release/out/takami-no-kago-chapter-39/11534/?url=https://nudebeach.top/contents/89711145/2.html means it must be enough to make a 13 year old boy horny. This may not appear to be a high bar to get underneath, but the fact this qualification exists, means that nudity alone is not obscene to minors. An anatomy book in a school library isn't obscene, nor is Kurt Vonnegut's description of a image of a girl fornicating with a horse in Slaughterhouse 5, because it's clear that there surely is no intention to arouse the prurient interest.
*If t here were any type of performance, dancing, display of a film, or anything else besides folks hanging out in the nude around a pool and steam room, I'd keep the minors house.
Statute: Description: amount.
San Francisco Nudity Ban Demonstration