In 1951, four Neapolitan siblings – Aldo, Paolo, Anna and Franco Sersale – turned their summer house overlooking Positano’s canyon-like cove into a hotel. 75 years later, Franco’s son Antonio now runs it with his wife Carla. The antiques-filled rooms look out over the colour-popping town below and the Salerno-fired tile floors still catch the light. Some things, thankfully, don’t change.