You are right fire stick. If you are self conscious about your body (meaning you don't like the way it looks nude) then you should probably stay away from any nude gathering. A man with a flat abdomen and a average size flaccid cock will get looked at more than a man with a belly and a little larger than avg size flaccid cock. Same goes for the ladies. If you are not comfortable with your nude body then you might want to stay home. I have seen couples get in fights over the other getting to many stares.
I would say that a nudist venue is an excellent place to get rid of your self consciousness. You really do realise that bodys really do come in all shapes and sizes, with various inperfections, to be worthy of a coment you would need to have an extra testicle or something weird. The people who should stay away are those that arn`t comfortable with other peoples nudity, and feel that people with percieved imperfections should cover them up.
So people might look at others bodies, I know I certainly do, its no big deal if its done in an appropriate maner. Being in a nudist venue for me is a huge turn on, which is i`m sure quite natural, but I would save it for an appropriate time.
If I go to a nude beach, I'm going to paint a sign on my chest: "IT GETS BIGGER!"