Swimming For Women
You can go to swimming, if you take care of hifz e fujoor in recommended way, even infront of women. For details of hifz e fujoor, pls see Discussion 47826 The hadithbis in context of exposing body parts infront of others and to stop on basis of sadde zariya
Please also refer to the video below from 3:17 to 5:04 https://youtu.be/Kk5gNeHohQ4?si=VJbWWy6JRzrQQgbC&t=197