Search and Rescue teams are looking for a 59-year-old man who has not been seen since he entered the Coromandel Ranges on Monday.
The missing Pukekohe man entered the ranges from Kauaeranga Valley Rd on Monday, intending to return late in the day.
His wife raised the alarm when he failed to return by Tuesday lunchtime.
Waikato Search and Rescue Sergeant Phil Bell said the missing man was thought to have been wearing jeans and was poorly prepared for a spending extended time in the bush, police said.
Search teams had been working overnight, checking tracks and historic kauri log dams that were of interest to the lost man.