You won't find the cache at the published coordinates but there is a sign with information about the area. It makes for interesting reading.
To find the coordinates of the cache you will need to find out the names of the two mana whenua mentioned on the board. Some of you will probably already know the answer to that question but if you don't, try and turn the finding of this cache into a learning experience.
The photo from the Tyree Studio Collection is UVWXYZ
The cache is at S41 04.AYW E172 59.DYU
Where A is one half of the number of letters in the name of the first iwi mentioned and D is the number of letters in the second iwi listed.
If you open the cache in your browser you'll be able to check your answer.
You can validate your puzzle solution with
certitude.