I did a class with my parents today all went great.I tried to get them to take the class when I took mine in 95. Both my parents are in thier earily 50s and they both decided to take a dive class that I set up for some friends from my college, and they all did great; it is amazing what you forget after being certified over 10 years ago. I would suggest if you can sit in on a class or just take a refresher class would be great.Although,some of the stuff they went over I had let fall out of my head lol.I did still remember alot. Today we will be going to 3 sisters for their pool sessions. I will update later how this all goes.