Conventional wisdom tells us that while in Rome, we should do what the Romans do – though why stop there? The citizens of the eternal Italian city are discerning and fastidious when it comes to their pursuit of pleasure and cultural enlightenment – whether food or art, fashion or architecture (they are, after all, the hereditary heirs to history’s great civilisation builders). So, when it comes to the summer months – at which point Rome reaches a near-unbearable boiling point – follow the old adage and ‘do as the Romans do’, which is to say leave the city entirely and head to Ponza, the secret isle where Romans have holidayed for decades.