Preferably a swimsuit.
Many swimmers (in a pool) wear swimming goggles.
wear a bunch of heavy stuff
Modesty in public. Once at the pool disrobe. When ready to leave don clothes again.
Speedos are compulsory in almost 99% of public swimming pools in France. I always wear speedos for swimming, not only in France. Speedos are more comfortable to swim than baggy short that give you the feeling to swim with a raincoat on.
Swimming in a pool with chlorine while on your period is generally safe and shouldn't cause any issues. The chlorine in the pool will kill off most bacteria, and any menstrual blood will be diluted in the pool water. It's important to wear tampons or menstrual cups while swimming to prevent leakage.
'Swimming Pool', sometimes shortened to 'Pool'.
If you mean for a swim practice then yes... If you mean in a local pool then yes... If you mean in meets or compititions then no.
If you go swimming in a pool you don't need to wear anything but if you are going swimming in a natural waters like lakes, rivers, ponds, and oceans you need to wear water shoes (water proof).
Yes, men can wear socks while swimming in their pool. Most people prefer not to wear socks, but to each his own.
What are swimming pool "Coopers"
it depends on which swimming pool
Depending on the material of the earrings, it is probably for the best to take them out before swimming.