This geocache is part of the Murweh Triangle Geoart. It is NOT at the published coordinates. To find the cache, you need to work through the following.
I saw someone in a cache page somewhere playing around with the Pig Pen Cipher, and so I experimented in creating a cipher out of triangles instead of cross-hairs. And then I found that some South-Australian cacher had already produced something but mine is a tad different, so here goes.
I started with a square, added the diagonals for four triangles, then added the alphabet outside the inside with y and z in the centre. Here is the result:
So to find the cache coordinates, you need to translate this for South and East:
