Police continuing to search for a man and his three children are appealing for video footage or photos from the public.

Thomas Phillips, along with his three children eight-year-old Jayda Jin, six-year-old Maverick Callum-Phillips and five-year-old Ember Phillips were last seen at Marokopa, in the Waikato, on Saturday, September 11.

Waikato West Area Commander Inspector Will Loughrin says the physical search is ongoing today with Police search teams doing shoreline searches in the area at low-tide.

"Searches by air are being undertaken by a Coastguard NZ air patrol using a fixed-wing plane, a local helicopter operator with police air observers on board, and the Police drone.

"Police are asking for members of the public who have any photos or video footage showing the weather or sea conditions at both Marokopa and Kiritehere on the weekend of 11 and 12 September, to please make contact."

This can be done by calling 105 and quoting file number 210913/1952, says Will.

Message from the mother of Jayda, Maverick and Ember and extended family:

"On behalf of Jayda, Maverick and Ember's mother, our extended families and friends, we would like to extend our utmost thanks and gratitude to Waikato Police Search and Rescue staff, Waitomo LandSAR, Hamilton LandSAR, Fire and Emergency New Zealand for their drone operations and for catering for the searchers, and Surf Life Saving NZ for their time on the water.

"We also want to thank the air support units who have been helping with the search, the local Iwi and community for their support, and preparation of food donations, any koha given and the families of everyone mentioned for supporting them during their time helping our family.

"We have been incredibly humbled by the generosity and support shown by everyone during this difficult time.

"We all just want Tom, Jayda, Maverick and Ember home."