It once lured the likes of Winston Churchill, Princess Grace of Monaco and Ava Gardner, but times have changed in Portofino – and so has the comportment of visitors.

Faced with the invasion of hordes of day-trippers whose behaviour often leaves a lot to be desired, the chic resort town on the Italian Riviera has introduced a raft of new regulations in an attempt to restore decorum.

Wandering around the harbour barefoot or without a shirt is now prohibited, as is snacking on the front doorsteps of the port’s pastel-coloured houses.

Lounging around in the town’s parks and piazzas is banned, as well as playing loud music after midnight.

Breaking the rules will mean a fine of up to €300 (£265).