And how did you learn?
Our children take swimming lessons twice a year, each time for six weeks, from the time they turn five years old. They're pretty pricey, even with the discount for having multiple children in the class.
I learned to swim when I was seven or eight. My father took us to the local pool and threw me in. It was very traumatic, actually, and not funny at all, even though he thought it was hilarious, but I did learn to swim. If there is ANYTHING positive to be said for his method it would be that it was cheap. ;)