Police are searching for missing 54-year-old Kevin Hartley in the Scotts Ferry beach area, near Bulls.
He was last seen driving a quad bike from Parewanui Road to the beach towards the bombing range tower in Santoft Forest on the evening of Friday, February 16.
The area was a well-known fishing spot locally.
His quad bike has been found parked in the sand dunes.
Police have concerns for Hartley's wellbeing and would like to hear from anyone who saw him in the area on Friday or over the weekend.