A bit of history of the quarry, "Giant sandstone steps are all that remain of Maroubra Quarry, one of the most significant sources of yellow-block sandstone in Sydney. From 1916 until 1970, it was operated by Hawkesbury sandstone quarries and was the source of stone for a number of significant Sydney buildings. The Australian Museum on College St, Sydney Central Railway building and the old Maritime Services building were all fashioned from the yellow stone." Southern Courier.
And now for the cache. The cache is located at S33 56.ABC E151 14.DEF
Where A is how many legs does a Velociraptor have?
Where B is how many legs does a Titanboa have?
Where C is how many horns does a Triceratops have plus how many horns on a Carnotaurus?
Where D is The number of claws on one hand of a Therizinosaurus? Times this number by three.
Where E is The number of wings a Microraptor? Divide this number by two.
Where F is the amount of tail spikes a Stegosaurus has?
Use this link to check coordinates: