A fishing trip which ended in tragedy last week left four men and a teenager floundering for their lives in the Hauraki Gulf after their boat filled with water and sank within seconds, say police.
The five had no time to call for help on the VHF radio fitted in the six-metre, aluminium boat and had to struggle to get their lifejackets on in the water.
One of the men, Anthony Murray Preston, 41, of Warkworth, north of Auckland, could not get his lifejacket done up properly and police said he was thought to have slipped out and drowned. Mr Preston was thought to have been drinking.
The tragedy prompted a warning from police that a two-way radio fitted in a boat may not always be enough and that boaties should consider other waterproof communications equipment.
After a week of searching police called in the navy to use an underwater scanner to search the seabed near Kawau Island for Mr Preston's body. Navy divers were on standby today to recover his body if it was found.