The cache is not at the posted coordinates.

maccamob's one hundred and forty eighth cache is a Bonus Cache for completing our Adventure Lab 

Werribee South Views

https://labs.geocaching.com/goto/39e592dc-2c80-45da-81ca-238a20dd667c

To get the coordinates for this cache, you must first complete the Werribee South Views Adventure Lab, visiting five locations in sequence.

If you have not done so already, download the Geocaching Adventure Lab App from your App store to your smart device. When in the vicinity of the posted co-ordinates, open the Adventure Lab App, log in to your Geocaching.com account and look for the Werribee South Views Adventure Lab. The Adventure Lab will take you to 5 locations, and each location will require a question to be answered before you can move to the next location. Once you have completed the Adventure Lab, you will receive the co-ordinates for this cache in the final journal entry. If you are having trouble locating the final co-ordinates, scroll through the journal entries on the front page of the Adventure Lab.

We hope you enjoy the tour.