For the caravanner with food intolerances the answer is easy. There is nothing better than towing your own bathroom about the countryside. And Australian highways are notorious for their lack of conveniences. So next time you see a car and van parked on the side of a highway in the middle of nowhere, just remember before you stick your head in the door to help that Mum’s probably on the loo and admiring the view.

Time for a pit stop Mulligan Hwy near Cooktown, Qld