Yes, I second SNJ’s comment. At traditional nudist places, an erection is considered rude, but at swinger friendly nudist places (like we enjoy), an erection is a plus.
The only nude non-swinger place that I recall men proudly showed off erections was at Haulover beach in Miami where the buff, well hung, gay men pranced around with thier full or half erections much to Mrs. Barbarian’s delight.
The difference between many naturists and … us … is that sometimes we also enjoy being turned on while nude.
FYI - this is not us ;-)