Any advice?

After I finish my time in the airforce, I am thinking about travelling somewhere...and hopefully see some beautiful nature.

can anyone give me some good advice as to where I should go? I`ll have about 5-6000 dollars...I`ll hopefully be gone for about a couple of months...so it can`t be extremely expensive.

I was considering New Zealand, but I am not 100% sure yet...

HAs anyone been there by the way?

Australia, pretty close to NZ but its my home and I consider it one of the most beautiful countries in the world. The great barrier reef, Ayres Rock (uluru), Sydney harbour and the opera house, so many amazing sites to visit...
And great cheap backpacking options too...

My father went to New Zealand on business, and he really enjoyed it.

Sounds like you really want to go to New Zealand. I've always wanted to go to Australia...it sounds like it would be awesome. But really, go wherever you want and I hope you have fun!!!