Jump!
Once the child is comfortable with blowing bubbles and getting their face wet, have them jump from the edge of the pool into your arms. Some kids are scared to do this, some are not. Be patient with your child if they don’t want to jump right away, and try to have an older child demonstrate. For the first few jumps, catch the child with their face above water. Once they become more accustomed, ask them to hold their breath because they are going to get their hair and face wet. If they are unwilling right off the bat, practice dunking (gently, of course) their head under water while holding them under their arms at the armpits. Once kids get the hang of this, it’s always what they want to do most!