Visiting Middle-Earth

I'm busily planning a New Zealand holiday, with one particular aim being to visit a friend who's been there for over a year now doing her PhD, but while I'm there I thought it would be a shame not to see some Lord of the Rings/Hobbit filming locations!

So I've just finished plotting as many points as I could find to help me plan the itinerary. We're tentatively planning to fly to Auckland, hire a car and drive ourselves down to Dunedin where my friend is living, stopping at locations as we go. However, I'm waiting to hear about my application to the JET programme and can't book flights yet because the timing will coincide with possibly having to do some sort of complicated and possibly time-consuming medical examinations for the JET people - the frustrating thing being that they won't give any useful information about the requirements in advance, only that you should 'be available in April'.

Anyway, here's the map I've generated for LotR locations in New Zealand (click the icon in the top right corner to embiggen):