It took about two weeks (3 or 4 lessons) for my kids to stop screaming and start paying attention. Now they love swim lessons. Thank goodness, because seriously, it's NOT cheap. Tonight's lesson is the last in this series. I am in utter disbelief at the progress they have made. Kudos to the YMCA swim coaches. Big Fat Kudos. We have one week off and then the next session starts. I' m really (REALLY) hoping they don't forget everything during the hiatus, but I'm preparing myself for the worst.