@elenasmommy050315 learning to hold their breath, reaching and grabbing the side of the wall and holding on, being comfortable on their back and stretched in a backing position, saying momma. That's the very basic survival skill and it takes a little while but they won't be afraid and they will know what to do.
I plan on taking my daughter at around 3 months so she starts getting used to water and trying to swim because I never learned to swim and I want her to learn as early as possible.