Unfortunately I have never been on a nudist or clothing optional beach although it has been one of my greatest though unfulfilled desires. Suffice it to say that my wife would never have countenanced it in a million years and that is why it is unfulfilled. However, I noticed in the last picture that the old guy had a hard-on or a semi at least when he took his shorts off. Is this because of the 'frisson' of being naked in public because I imagine that is what might happen to me in the same circumstances?