At my old gym (just outside London) I was doing a dance class with lots of bending and bouncing etc when a man started filming us all through the window. I complained to the teacher and she said yes he’s a known problem but he’s a member of the gym so the manager won’t do anything.
And so many other times when I was using the weights equipment random men would come over and mansplain the equipment to me / work right next to me with lots of grunting despite the whooe room being empty.
I don’t go to the gym anymore. I’d jog in the local wood but it isn’t safe because you know - men.
So mostly I just go for walks. I’m a lot less fit than I used to be.