The cache is not at the listed coordinates. To discover its location, you will need to complete the Adventure Lab, Bridges Hill Park Playground. When you complete the adventure lab the final journal entry will give you the coordinates for the bonus cache.
I hope you have enjoyed the many features of the park in Cessnock. Now you can go for a little walk to find the cache. Perhaps play some Led Zeppelin on the way, especially one of their songs that I love. It might help you find the cache then again it might not. Enjoy the stroll around the park passing through bushland on concrete and or dirt tracks.
Use your phone’s QR code scanner to open this Adventure Lab in the Adventure Lab app.
Bridges Hill Park Playground Cessnock Adventure Lab