When I was a younger girl, my family lived in North Holland before we moved to Canada.
I recall several times we went on family holidays to a nudist camp on the beach somewhere near Zandvoort. This would have been in the very early 70s.
I can't remember many details but I do recall the feeling of freedom being able to run on the beach, swim and play entirely naked.
There is one day I do remember clearly. This was the first time I learned what an erection was. I have a little brother, so I knew about the differences between boys and girls but had never seen an erect one before.
One afternoon my mother, brother and older sister, we would have been about 13 to 16, were sitting on a beach blanket when my dad walked up with a hard-on. My sister looked at it and giggled and my mom blushed and got terribly embarrassed. My father wrapped himself in a towel and we all had a picnic lunch.
Later, when it was just my mom, sister and I, mother scolded my sister for looking at my father that way. They had a bit of an argument that soon turned into a frank discussion on penis's , erections, the act of sex and the facts of life. That afternoon my sister and I talked and she told me even more, about her period starting and how you could touch yourself and feel pleasure. I had no idea. I now realize that day was the beginning of my sexual awaking. Within a year, I was masturbating every day and experimenting with sliding things into my vagina.
Many years later my sister and I spoke about those vacations. She said that there were some 'adult only' areas where she believes that some of the visitors engaged in open sex and wife-swapping. In addition there was another restricted area where the teenage boys were supposed to stay away from that was a safe haven for the teenage girls. She also said that she watched some older teenage boys have a masturbation contest to see who could ejaculate first, while she and another girl stood in front of them.
We will never know what our parents really did there but I would love to go back.