Swimming with a toddler

Now that summer has come, I would love to put my toddlers in a kids pool to play with water along with adult support. Any inputs/do/donts are welcome. I have seen arm bands and tubes that are used for safety purposes. Please recommend and share your experiences on the same.

2 year old would be too young to put in a regular pool even with floaters.
Look for a splash pool around you.
I started taking my son to swim when he was four.But he cannot manage for a moment without floaters even after months of practice.
So basically it's for fun in summers.
Better still if you can get into the water with him.
Enjoy!