the plane took off on runway 23 and travelled down frankton arm at about 2200 AMSL. (1100 above lake)
they followed the standard departure route at this altitude till they crossed back over land near jacks point, jardines.
upon getting there they most likely picked up the VOR and buried the throttles.
i watched it and certainly considered it unusual but they remained in VFR till they had a fair bit of altitude. i saw them last with plenty of altitude overhead the tollgate reporting point.
it does not help matter when the media talks to someone who plants his ass on a jetski all day and has no involvement in the local aviation industry other than in a company trying to start a float operation.