THE winter migratory pattern of the wealthy Packer clan is the sort of thing to send a chill down the spine of even the most hardened environmentalists.
With their private jet, fleet of superyachts, helicopters, a small army of staff and a few billion in the bank, the world really is James and Erica Packer's oyster.
And during the winter months, Australia's tropics are the glistening pearl in that oyster, which for the past three weeks the Packers have been enjoying.
After arriving on their jet a fortnight ago and having soaked up the warm sunshine in Broome with their children, Indigo and Jackson, the Packers flew to the Whitsundays this week where their massive superyacht, Ellerston Z, awaited them.
Sources from the world of private jets and superyachts estimate the fuel bill for such a trip (criss-crossing the continent by air and sending a huge motoryacht up the coast from Sydney to the Whitsundays for a few days R&R) would easily top the $500,000 mark.
James Packer probably ranks as Sydney's greatest private carbon emitter. His biggest spoiler is his luxury cruise ship, the Arctic P, a former ice-breaker, sucking up 500,000 litres of fuel to fill its tanks. Then it takes another 20,000 litres to fill the Ellerston Z, and there is a fleet of expensive and thirsty cars, including a powerful $350,000 Aston Martin DB9 coupe and various Range Rovers, as well as a 12-seater Sikorsky S-76 helicopter which ferries Erica and the kids to visit the grandparents in Gunnedah, and that jet the size of a commercial airliner.