You can barley scroll Insta these days without stumbling across an idyllic early morning shot of a neoprene-clad woman pacing purposefully into a lake, or a snap of flushed-cheeked friends clutching ...

Regular readers will know by now that I'm a cold water swimming convert. Show the slightest interest in an icy dip, and I'll yap on at you for hours about my favourite waterfall, river and reservoir ...