This cache was recently muggled and has been replaced in a different location nearby, in a quiet corner of Mt Emily Park. The coordinates may be off because GPS signal at the GZ very spotty, but look at the photo and the hint and you'll find the exact location easily.
I'd been spending a lot of time in the Selegie area for pretty much my entire life and only discovered the existence of Mt Emily Park a few months ago when I decided to go for a walk along Wilkie Rd, to see what was there.