I really Can't believe how norrow minded some in this group are you should be ashamed of yourselves you are not the people you claim to be it is suppose about freedom to do what you what.not what you want others to do.by all means bud hide your erection before the limp police get offended. Makes me wonder if I should wear a tie to your politically correct judge mental naked facility.
I'm new on this (or any) nudist web site although I've been enjoying nude beaches for 35 years. I've had a lot of male and female friends from my summers on various nude beaches on the west coast. I've talked to a lot of naked people and seen a lot of erections on beaches. At no time have I ever seen anyone (male or female) react to the casual erection. Nobody freaking cares on the beaches I go to. We simply ignore the erection and go about our business. It is absolutely a non-issue.
I've had dozens of erections on beaches over the years. None of them were caused by intentional sexual fantasies after staring at women on the beach. Most were caused by my falling asleep in the sun while laying on my back. Others were prompted by sexual thoughts that popped into my head (but not lingered on). If any man tells you that he can completely control his thoughts all the time and never has a spontaneous sexual thought - you've met a liar.
You women have just as many random sexual thoughts while sitting on a nude beach as any man has. You're just as "guilty". However, you don't have a penis. Nothing to get erect. So you can sit there smugly enjoying your sexual fantasy and nobody is the wiser. On the other hand, if a guy sitting on a towel 5 feet from you has a fleeting sexual thought that gets a rise out of him before he can "stare at a tree" or some other horse shit advice offered by the boner police, then you have another chance to shame the guy. Well, what about you? Shouldn't you out yourself for rampant sexual thoughts?
While I was still fit and athletic, I made a bit of extra money as a life drawing model. I did it for about a decade with probably 2-3 gigs a month. Occasionally, I would have an erection that lasted a minute or two and then faded on its own. Not once was I ever told not to have an erection or put a towel over it. Not once. There were several occasions where I was asked to keep my erection so that the artists in class could draw me with it. In one class, the female instructor asked me to masturbate to insure my erection (but not to the point of orgasm). She wanted her students to have a chance to draw a human in his natural state. Nobody was even slightly offended and yes, I did occasionally masturbate during that class to keep myself erect. It wasn't for the purposes of gratification. It was simply to give the artists a chance to draw an erect penis. Artists don't have a problem with the human body in its natural state. Why would you?
My experience over these decades is that nobody on the beach really gives a shit about the boner... as long as the guy isn't playing with it. If he ignores it because it's truly a non-issue, then everyone else will too. If you try to shame him for his erection while he is clearly ignoring it, not staring at you, not even approaching you... then you're the one who should be shamed.
When you go to a nudist resort you generally don't get a boner. At least not a full on boner.
Sometimes during normal activities you may just get a little firm or even stiff. Especially if you are young ( teen through 30s ) but as you get to be older it happens way less often.
The attached pix ( cropped from old nudist magazines ) are examples of typical resort boners.
Unless you are there with the idea of obsessing and checking out the women. Then you are just a perv.
Cover it with a towel. Strike the towel with a rock. If this does not help, remove the towel and strike with the rock. If that does not help, just walk around looking like an idiot until you are ejected from the area.
Very sound advice.