A teenager rescued by police after crossing Cook Strait in a small dingy was trying to visit his brother in Wellington.
Tachyon Hutt, 18, left Kenepuru Sound at 10pm on Friday to make the 100km plus trip.
But after his motor died, he was forced to call for help.
He was rescued by police after emergency crews used the signal from his fast fading cell phone to trace him.
Police say the overnight conditions were “rough” for a small dingy and are warning people to ensure they have all the necessary safety equipment.
Senior Sergeant Dave Houston says the cell phone saved the teenager’s life.
“If we didn’t have the mobile locate, we would have had a massive search. The mobile literally saved his life.
“While this was a good outcome and no one was injured, we’d like to remind people the Cook Strait is a dangerous stretch of water.”