Capsized boaties blacked out a navigation buoy in a frantic bid for attention - and the ploy saved their lives and that of a friend still in the water.
Sione Haunga and Mataele Fonua clung to the marker known as Alpha Buoy, at the entrance to the Rangitoto Channel, while their friend Tony Mau, 48, floated in the water nearby for more than two hours.
A passing container ship, MV Ninghai, noticed the buoy was unlit and heard the cries. The ship reported the activity to the Ports of Auckland pilot vessel who, with Coastguard, pulled off a dramatic pitch-dark rescue.
The police helicopter was called after the rescued pair revealed a third person was still missing in the water.