The cache lies in the You Yangs regional park around 40 mins drive out of Geelong, this park features a multitude of picnic areas, a great many walking trails and Mountain Bike tracks, an Orienteering course and much more to boot (including many other Geocaches). So why not make a day of it?
Whilst there are Toilets and Drinking Water available at the major picnic areas there are no bins in the park, please respect our parks and take any rubbish home with you, remember; "take only pictures, leave only footprints"
Be aware, this one is quite a hike from the nearest parking. Plan on a ~10km round trip (though that depends on what trails you choose to take to get there), there is a well-made path most of the way but the terrain is quite steep in parts and it is recommended that only experienced hikers attempt this cache.
The cache is a small "Snap Lock" Sistema container camoflaged in the vicinity of GZ, it is NOT necessary to leave the trail to get to the cache.
Please be particularly careful to replace the camo when you are done logging the cache, seems to be a lot more muggle traffic on this track these days, maybe more people have discovered it since the closure of the Great Circle Drive.
The cache is also accessible entering the park from Toynes Rd or off the Great Circle Drive and this reduces the hike down to ~1.5km each way. Be aware though that the slope up to the cache from the junction of the Northern Ranges trail and Branding Yard Road is quite steep in parts. Toynes Rd is pretty rough and ready closer to the park, though I've driven it in a station wagon I'd recommend avoiding it unless you have a 4x4, especially after rain.
Note that Great Circle Drive is closed beyond the Kurrajong MTB area until further notice due to washaways in late 2018, Parks Victoria have given no indication what (if anything) they intend to do to restore the circuit.