I took my little daughter swimming for the first time, at a wave pool down south in Taiwan. At first, she didn't like it at all; she shivered and said "hug hug". My wife got this floating car, so she said: "Duck!" She also point into the water and say "Fish!" in Chinese.
After that, she was crazy about the water. We would take her out to get a rest from the sun, and she pick up the duck and head back to the water. The swimming cap was mandatory. She threw her's in the sand.