"Other scents are more steeped in tradition. Acqua di Genova (£97, 185ml www.roullierwhite.com) created in 1853, is considered by many the benchmark Italian citrus scent, while all Carthusia's scents are still made on Capri in a tiny perfumery: Its fresh Mediterraneo (£60, 100ml, www.roullierwhite.com) is 640 years old. "Anna Katz, buyers for perfume boutique Roullier White, says: "while the French Riviera is all about flowers, the scents of the Italian coasts are very different, devoted as they are to citrus groves and often the peerless Calabrian bergamot. "Teamed with local herbs, these scents are classics of southern Italy, where every town once had its own cologne, designed to cut through heat and humidity - refreshing and energising."