My extremely experiment
I couldn't swim when i was a child. My parents told me "you should take a swimming class, son", but i was very lazy at that time. In contrast, I very like going to swimming pool and water park, I like water !
One day, I went swimming with my aunt. I usually swim near the edge of the pool, however, i decided to jump from the deep side, and my foot couldn't reach the bottom. As a result, i drank much water and got shocked. Fortunately, there was a guard-life who had known that i couldn't swim but still want to try deep water level. He saved me and my aunt was very scary.
After that accident, I joined a swimming class so that i could swim.