It’s been a while since I’ve struggled into damp neoprene of a morning. It’s the second day of a wintry weekend in Croyde, north-west Devon; I’m stiff from an hour in the sea the previous afternoon, and the upper part of the super-thick wetsuit won’t budge past my elbows. Together, my husband, Mark, and I jiggle and pull and yank it over my limbs. Finally, five minutes later, I am in a silver-blue sea, entirely empty, save for us. White-crested waves roll in, broiling and foaming, rocketing us forward towards the empty swathe of sand. For once there are no other boarders to dodge, no surfers whisking past: it’s exhilarating, extraordinary and … really rather cold.