"This is extremely positive. Tourism is worth over $1 billion a year to Northland and Australia is the largest single market for visitors, but I'm sure we can get even more Australians coming here," Mr Jongejans said.
"Melbourne is a very good market for us. It's got a population of 4-5 million, it's a bit cooler than we are here and we have so many great things to offer them. We need to make sure we are in the forefront of their minds when they are thinking of where to go for a short break and we've got to ensure we keep providing wonderful products and services and experiences for them when they do come."
He said it was a sign of a maturity in the industry with many groups working together on the campaign, including Tourism NZ, Northland NZ, Facebook, Flight Centre, Northland Inc and Air New Zealand.
"We've had great weather in Northland so far, but summer is only really beginning here so we want to give them somewhere to get away to over the shoulder period and it can only be good for the region."
Tourism Minister Paula Bennett has welcomed the campaign, saying it was an excellent approach to encouraging tourists to visit Northland.
"The tourism industry is going from strength to strength with 3.5 million people visiting a year and spending $14.5 billion while they are here. That's great to see but there's more to be done," Mrs Bennett said.
"We want to spread the benefits of tourism across the country so regions like Northland can benefit. Tourism NZ's regional dispersal strategy aims to get visitors to travel to less-visited regions and discover their attractions. It's about making tourism work for New Zealanders."
It is the first Tourism NZ campaign focused on using a single region to test whether it can influence a shift in traditional travel patterns. The campaign will run in Melbourne until mid-March to encourage Victorians to visit Northland in the shoulder season.
Commercial sensitivity meant the cost of the campaign could not be released, but Ms Bennett said its success would be judged simply by the number of extra visitors it brought.