An American television crew is spending three weeks north of Auckland filming orca.
The resulting footage will appear in a limited television series on the National Geographic Channel, beginning in 2020.
The series consists of four hour-long programmes on whale culture, each focusing on a different whale species.
The crew is in the area until mid-September and is keen to hear about sightings of orca especially from the Hauraki Gulf and the beaches north of Auckland.
To report an orca sighting or stranding via social media visit facebook.com/OrcaResearchTrust.