Beach, waterfalls, hot springs, sauna like places where all people around are comfortable being nude I have only one experience. It was very positive
If its warm and your not in a public gym, then there is no point in just adding to the laundry pile . I tend to wear a pair of trainers and clean socks though . The former to protect the toes ( machines and toes dont mix ! ) the latter to protect against athletes foot . I also like seeing my Abs doing the work when I am working out.
In the garden on a Warm Summers early evening. Or in Summer rain. Love the feeling of those large, warm rain drops on my Skin.
My preferred climate is temperate leaning towards tropical. I have enjoyed desert nudity but it is more volatile on the skin with dry air and higher UV concentration. It is best enjoyed in the shade and if you are an outdoors type of person nudity without a cover will be harmful on the long run. Temperate climates close to tropical have a wide temperature range across the year but daily the range from low to high is very close. The temperature is very stable for most of the year and the number of months, from 9 to 10, supporting comfortable nudity is nice.
Any place it's sunny acceptable and no bug's at least mosquito lil blood sucking vampire gnats. Nice farm pond or pool even just the back yard!
Our neighborhood is full of retirees and we have nude parties usually at some ones home in the back yard. We require 8' privacy fence and no cameras. Most folks are uninhibited and often involves exchanging partners. Sadly we have more widows then single men or widowers. no one is judge mental however a younger couple who are not retired but still a lot of fun. Will become intimate in front of everyone. They have done this every visit and it ends up just becoming total sexual. What was once just a neighborhood nudist group is now a exchange club. Third Age living who would have thought!