Police are searching for overdue tramper 36-year-old Timothy Clements of Rangiora.
Timothy began a walk on Te Aroha Track toward Lake Emily on 18 May, dropped off at the start of the track on Double Hill Run Road. He was due to get picked up at Lake Emily on Monday morning, 20 May, but did not arrive.
Police were notified that Timothy was missing around 4:45pm on Monday.
Currently 25 LandSAR volunteers are searching in the area, including two LandSAR dog handlers and a helicopter.