Hi @ABelley and thanks for the record. The goanna looks to be on a walking track. Would you mind checking and confirming the location please as the pointer on the map does not seem to be near a walking track.
If you are living at this location you might be interested to retain photos of the left and right faces of any goannas you see as they live for decades and are uniquely recognisable. So over a period of years it is sometimes possible to tell the extent to which a population is resident and stable or experiencing high turnover. But you need to move slowly and patiently to get close enough to some individual goannas to record their faces.