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 this image the other day:
and it caused me to count the number of triangles in it (assuming all lines are straight). I counted 14. But then my daughter saw it and counted a different number.
How many triangles are in this image (there is a definitive answer):
Put your answer into Certitude for the cache coordinates.
You can validate your puzzle solution with certitude.