A one step Multi-Cache in Hardy's Scrub. An area full of native vegetation and part of the Onkaparinga River National Park.
At the posted coordinates you will see a sign of Gate 17.
On the sign you will read GRID: ABC DEF.
Substitute the GRID letters ABC DEF for the numbers they represent and use the formula below to find the final loocation.
S (A-E)(C-F) (C-E)(D or B).(A-C)(E+F)(A-C-F)
E F(A-E)A (C+E-A)(C-F).(F+F)(A-B)(B-D)
Feel Free to Google the sign and find the numbers if you'd like but you will still need to go to the posted coordinates to make the find in a shortest possible walk to the final GZ.
Walk back to the parking coordinates via the creek just north of the cache location to see something different.