Communal nudity is proven to reduce "social physique anxiety"—the fear of being judged by others—because the environment is deliberately non-judgmental and non-sexual. Enhanced Life Satisfaction:

Yes, with conditions. Studies show that after a nude recreation experience, participants—especially women and first-timers—report significant drops in body shame and increases in body appreciation (Strycker, 2021). However, naturism risks reinforcing a “tolerance” model rather than active celebration of stigmatized bodies. For example, a plus-size woman may be allowed in a naturist club but still feel stared at if few other fat bodies are present.

I remember a specific moment at a hot spring in Colorado. I was sitting on a rock, hyper-aware of my cellulite and the way my stomach folded when I leaned forward. I was miserable, trying to sit in a flattering pose.