The first step is to learn to float. Most people are a little less dense than water; so floating is just a matter of keeping the head bobbing out of the water.

I knew a girl who was denser than water. Her tendency was to sink. But she could stay afloat just by moving her arms.

I hope you take the plunge and jump in the water. It is something that people do instinctively.

Some anthropologists think that man became hairless because our ancestors lived by the sea and swam all the time.