If you’re thinking of an idyllic, summery week in Italy’s glorious Amalfi, images of a sun-drenched Positano are likely the first ones that will come to mind: That picturesque volcanic beach dotted with blue-and-white-striped parasols, pastel-hue houses hanging to the side of vertiginous cliffs, and scenic vespa rides into blood-orange sunsets… If only it weren’t …