This is a bonus cache that you can find when you successfuly complete the City Centre ArtWalk Adventure Lab.
When you have the collected the required information information, you can find the cache a short drive (or walk or ride) away at:
S 41 16.ABC E 173 16.DEF
F = B + E
The cache is a 400ml container with log and room for small swaps or trackables. Please replace and recover as found.