The Blenheim centre holding Sir Peter Jackson's WWI planes will get a $1.5 million boost in funding from the Government.
As part of its Tourism Growth Partnership fund, the Government is also investing $350,000 to support the development of a new spa complex on Rotorua.
The grants were announced today by Prime Minister and Tourism Minister John Key at the tourism industry conference, Trenz, in Rotorua.
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"Omaka Aviation Heritage Centre has already established itself as a premier tourism attraction, featuring Sir Peter Jackson's WWI aviation collection. The centre will be expanded to include a WWII hangar exhibition, which will also serve as a function centre capable of catering for up to 500 guests," said Key.