I clearly remember playing nude with my childhood friend Tim, in the house and the garden, and quite deliberately as we were about 9 or 10 and it was more about adventures than naturism. We regularly played together, often nude, until we were about 12 when his family moved away. The two families are still in touch but I haven't seen him for many years. I also remember playing nude with another friend, Margy, again when we were about 8 or 9 and usually at her house whilst our mums chatted, still in touch with her too!
The Naturist Handyman
My first nude experience was on a camping trip with my schoolmates in primary boarding school in New York State. We hiked in to the campsite with a couple who teachers at the school. After we set up camp, everyone decided to go swimming in the mountain stream and wife insisted that we boys just strip off and enjoy the sunshine. No one make a big deal amount it.