This AdLab highlghts the importance of large quantities of water in the Ross Goldfields.
The cache is a "Small", the hint is: "Flat rock on top".
This Adventure Lab cache can be participated in by downloading the Adventure Labs app.
Android: link
Apple: link
Scan this QR code

Or by following this LINK
Log-on with your Geocaching log-in, then search in the vicinity of Ross and you can begin your adventure.
When you stop at each AdLab stage you need to gather some details to be able to find this cache.
As you correctly answer each question you will be awarded one point against your logged in geo-account.
The final can be found at S 42° 53.ABC E 170° 49.DEF
Your tasks as per the Adventure Lab cache will disclose the values for A to F.
DO TAKE NOTE and GOOD LUCK