Poles Apart (Otago) Mystery Cache

You will need to go to the published co-ords to solve this puzzle. However, DO NOT attempt to stand on GZ. That would be really silly! You will understand when you get there. Perhaps just observe GZ and its wider area from a safe distance.

The co-ords for the cache will be found by solving this:

S45 (SE+) (NW-) . (SE-) (NE-) (NE+)

E170 (NE+) (zero) . (NW+) (NW+) (SE+)

Zero is given to you and you need do nothing to this.

Stealth will be required to retrieve the final. Small container- about the size of an Eclipse container (but it isn't!). BYOP. The final is not on private property.