The year has got off to a great start for marine biologist Ingrid Visser, who spotted an orca in Northland she had rescued almost a decade ago.
Visser helped to free the orca she later named Diane, when it became entangled in cray pot fishing lines in 2014.
Orcas, often called killer whales, are the largest member of the dolphin family, and are endangered.
Lucy Xia reports.
