I can’t remember when my terror of waves began in earnest. Maybe it was a singular incident that triggered it, like that monster wave in Biarritz, France, almost 20 years ago that body-slammed me on to the seabed, taking all the skin off my chin.

More likely is that my transition from fearless to frightened had been more of a slow creep, and a perfectly rational one when you consider the danger of riptides, hidden rocks, sharks and concussion. But for me, I feel it goes deeper. Almost inevitably my job will have had something to do with this. Nearly two decades of working as a journalist reporting on the very worst things that human beings can do to other human beings in a wide array of contexts has definitely eroded my sense that I can keep myself – and others – safe from harm in a dangerous world.

In recent years, I have found that any bit of sea with waves above waist-height makes it a no-go zone for me, even though I’m a good swimmer and love being in water.…