As a walker in the suburbs, I thrive on the noises I hear along my route. On the beach, which I leave today, these may be the squawks of a gull or the pounding of the surf.  

But this week I’ve also spent much time in a pool, and I’m reminded what a silent world that can be, what a different form of exercise, floating or treading water, or doing the crawl or breaststroke, head submerged, ears closed to the sounds of the day. 

It’s a meditative space, the world of water. And above all, it is quiet.