Tourism New Zealand is welcoming figures that show international arrivals rose 5.6% in June.
Acting chief executive Justin Watson said it is encouraging to see such growth after a tough few years for the industry.
He said the first six months of the year were outstanding in terms of visitor arrivals in particular holiday arrivals which are up 10%.
Mr Watson said that's significant because such tourists visit more places and take part in more activities.
He said the growth is also evenly distributed across all the core tourism markets, including some that have struggled over the last three years.
Given the high dollar, Mr Watson said that is a very positive sign.
The Middle Earth campaign has also paid dividends:
"It's having a definite impact and so for the first three months of the year, what we've seen is 8.5% of visitors said that The Hobbit has been a key contributor as to why they chose to come to New Zealand."