Detective Senior Sergeant Gerard Bouterey said the investigation team had been working to establish Humphrey's movements in the daysprior to his death.
"We believe Adrian left Rotorua at around 7.30-8am on Friday, May 6. He arrived in Taumarunui at around 10am and departed BP Taumarunui at 10.15am."
Adrian Humphrey's trailer and bike. Photo / Supplied
He said Humphreys was travelling in a grey Ssangyong Korando SUV with registration JFZ167 and towing a trailer with registration S946T.
His bicycle was attached to the front of the trailer, which contained a canvas tent.
"Police would like to hear from anyone who recalls seeing Adrian or his vehicle en route between Rotorua and Bushlands Campground in Tāngarākau," he said.
"This will help us identify the route Adrian took between Rotorua and Tāngarākau, and establish if he came into contact with anyone while travelling."
