Geocaching: GPS treasure hunt on shifting ground as Australia changes coordinates

Among the 100,000 Australians who play geocaching - which combines 'bushwalking and geeky technology' like GPS - the update to Australia's latitude and longitude is a talking point

Australia is on the move.

The continent drifts in a north-north-east direction at rate of 7cm a year. But, from this year, its recorded latitude and longitude will move 1.8 metres - a scheduled update to the local coordinate system to reflect the movement of the Earth's tectonic plates.