Now the idea has generated so much momentum and interest "Harry" is planting a second stash of cash this Friday.
"What started as a crazy idea has led to a number of serious offers of support in way of cash or vouchers from individuals and local business," he said.
Messages of support from former Whangarei residents now living around the world and New Zealand had come flooding in .
Although there were some who thought the page was a hoax.
"This is legitimate. People have to understand it's a free, fun activity for the community. I don't want it costing people more in petrol to look for the cash than the actual cash stash.
"It's about getting out and seeing what is around our city and creating a buzz," Harry said.
"The next one will be good."
A Westpac bank account had been opened for people to make donations and local businesses had also offered to donate vouchers in place of cash.
Look out for Friday's clue on the "Find our cash Whangarei" Facebook page.