You shouldn't, nay, can't ever visit New Zealand without coming to the South Island. And just 30 minutes or so from the Picton Ferry Terminal you will find Omaka - home of the........
Omaka Aviation Museum
The museum presents the outstanding Knights of the Sky exhibition, featuring Sir Peter Jackson’s own collection of WW1 aircraft and artifacts. This story of aviation in the Great War is brought to life in sensational sets created by the internationally acclaimed talent of WingNut Films and Weta Workshop. The theatrical treatment is both innovative and visually stunning. Captivating scenes depict the aircraft in context, sometimes recreating an incident that actually happened in the war. Rare memorabilia is on display, worthy of any national collection and ranges from beautifully crafted ‘trench art’ through to personal items belonging to the famous Red Baron himself.
You can get a guided tours on request or you can self-guide at your leisure.
Located in Marlborough just minutes from the centre of Blenheim, the museum is open daily (except for Christmas and Boxing Days), and promises an enthralling experience for all. In my opinion this is the very best aviation museum in the Southern Hemisphere, and up there with the best in the world!
The physical cache is at: S 41° 32.ABC E 173° 55.XYZ
Once at the main site have a look around, and discover who manufactured the Red Barron's aircraft (there are many references). When you have the name (hint 6 letters, sounds rude to some!) you will need to crack this simple substitution cipher: A-4 B-12 C-9 X-4 Y+3 Z-17 (ABC - first three letters of manufacturer, XYZ - the last 3 letters)
The cache is an appropriately cammoed mint tin, and has been placed with the kind permission of the owners. The location is very very popular and therefore a high muggle zone. Stealth, worthy of an SOE operative, will be required at times - you have been warned!