Art fairs come in many guises, from white tents to scrappy Armories, but the latest is Grand Luxe, a $30m yacht.

Launched last week, the six-storey ship will play host to 28 gilt-edged galleries including John Mitchell of London, Pelham of Paris and Mallett Antiques of both London and Manhattan. The yacht will sail up and down the length of the east coast of the US until August next year, mooring at moneyed ports including Greenwich, Connecticut, headquarters to more than 100 hedge funds.