Water Safety New Zealand receives police reports after drowning incidents, but not yet on yesterday's case. "While we cannot comment specifically on this incident as the details are yet to be confirmed, it is a tragedy and our condolences go to the family involved," spokesman Ben Christie.
He urged people to familiarise themselves with New Zealand's Boating Safety Code before they go out boating on seas, lakes and rivers this summer.
Christie said six people have drowned in Northland so far this year.
People should take lifejackets and wear them to increase their survival in the water because boats, especially those under 6m long, could sink very quickly, he said.
"The skipper is responsible for the safety of everyone on board and for the safe operation of the boat. Stay within the limits of your vessel and your experience.
"Take two separate waterproof ways of communicating so we can help you if you get into difficulties. Check the local weather forecast before you go as New Zealand's weather can he highly unpredictable."
Christie said safe boating and alcohol did not mix and things could change quickly on the water. Therefore, he said, people needed to stay alert and aware.