An interesting spiral construcation on ANU's estern entrance awaits you.
Long forgotten and ignored by those who walk by and often don't even know about it (me includeded). In otherer words: worth a quick visit to find a cache. If anyone knows more about this spiral object please include in your logs, I am keen to find out more.
From shinydragon we know it might just be [a very elaborate] storm water drain. If so then surly almost artistic in nature, no?
At the given coodinate you are in the heart of the spiral (note that the feature goes on for a fair bit outside this walled in sectio). Now look around to answer a few questions and find GZ at S 35° 16.7AB' E 149° 07.CDD'
The taller walls surrounding the spiral center have clear vertical breaks in it. Given those breaks, how many pieces of large wall are there? +3 = A
How many rectangular glass-like art elements are inside the wall? = B
In the center of the spiral. How many distinct metal pie segments make up the gutter (hint: its more than 2 and less than 10)? = C
Looking in more detail at the rectangular glass-like art object in the wall. Count the verical sets of blue lines (which are separated by like a centimeter) You should get an uneven number. Multiply by 8 to get DD.
Checksums for both S and E together are 73
The Yabba Dabba Doo FTF goes to The Farmers 5 and Tankengine! (Thanks for the beta-testing, an ambiguity was removed.)