A tanker is on its way to help restart the motor of a "rocking and rolling'' yacht drifting in high swells off Kaipara Harbour.
Three men aboard the disabled yacht Cheval de Mer have been riding out high winds and rough seas since the boat's engine failed on Friday and the main sails were blown out in 70km gales.
The trio, two of which are said to be over 65, declined a helicopter ride to safety and chose to remain on the boat when a Northland Emergency Services Trust (NEST) helicopter first responded to an emergency beacon at about 8.30pm on Saturday night.
The crew used a small jib and mizzen sail to claw their way north and stay clear of the treacherous lee shore, and were last located about 10 nautical miles (18.5km) west of the Kaipara Harbour entrance.
Rescue Co-ordination Centre spokesman Ross Henderson said a motor tanker had been sent to aid the trio this morning.