Imagine a pint-sized country – less than a square mile in size (2 square kilometres) – with sun-drenched, quiet streets, no dog poo and no income tax to pay. A place where motor racing and yachting are the national pastimes and people hop into a helicopter to get from A to B instead of hailing a taxi.

Now imagine that one in three of the people who live there are millionaires – often many times over.

This little oasis has, in fact, become such a magnet for millionaires that many more want to relocate to its sunny shores. So, the local authorities have taken the radical step of allowing the construction of artificial islands out across the sea to house them all.