When we planned our trip from Sydney to Canberra, I checked whether some of the NSW Caches of the Month were on the way. And indeed! The Cache of the Year was out there, waiting for us.
When arriving at GZ, we were first a bit confused. How could you hide such a large box around here? Then excluding systematically all impossible locations, we arrived at the conclusion ... And indeed: Bingo!
Thanks for the fun - Fogg & Consortin