Police have criticised the "sheer stupidity" of three divers without lifejackets, a radio, cellphones or an anchor who needed rescuing after their inflatable boat drifted out to sea.
Their boat went adrift after its small outboard motor seized while the three Palmerston North men, all in their 40s, were diving off Akitio Beach, south of Dannevirke, yesterday afternoon.
A man onshore saw the boat drifting out to sea and alerted police about 4.30pm.
"It wasn't long before the inflatable craft was out of sight to those onshore," Inspector David White said.
A helicopter and local fishing vessels helped police search for the boat.