www.infantswim.com are a training organisation who advocate a system that, they say, can teach your kid to float safely in water until they can raise the alarm and attract rescue.
The videos are startling and might be worth looking into if you have small children and live near any body of water (like, you know a duck pond).
I once saw an art installation that featured video of a man’s face wrapped in a plastic bag crinkling in and out as he breathed. Even if you don’t have kids and frankly couldn’t give a toss about reducing drownings, you should watch the clip for the weird human response of “Holy shit. Get him out…get him out!”