Please don't bush bash! Here's a map of the trails that lead to the GZ.
The cache is located at Ku-ring-gai Wildflower Garden in St Ives. According to their web site, the garden is one of Sydney’s best kept secrets! And we agree, which is why we decided to add a few more caches there to encourage more visitors.
Check out their web site for more information about the garden.
Please Note:
The garden is open from 8am to 5pm daily, except for Christmas Day, Boxing Day, New Years Day and Good Friday. However, it appears to be open Easter Sunday! 
Cache GZ
The cache is placed very close to the Mueller Track. Access the GZ from the upper rock ledge so that NO damage is done when retrieving the cache. So...
Please plan your route to the GZ wisely!