The set coordinates will lead you to a rotunder-like shade spot with a plaque dedicated to a poet (whose name i can't say, because you could search up the clues). It is a nice spot, not to mention the Rail Trail bike path not far from here.
Date that the poet was born =19AB
Date that the poet died= 19CD
C-A =E
A×A=F
Final coordinates= S 36° 4B.DBA' E 146° 5D.EFE'
The cashe is about the sise of a 10 cent piece and is magnetic... Bring a pen and as always, beware of the muggles!