Interesting that it was a light aircraft with 7 people on board? There are not many that legally carry seven.
I think in Australia quite a few C207s (piston single, the 8 seat stretched version of the C206) are used for air taxi and sightseeing. There's also the piston Gippsland Airvan, made in Australia IIRC, a modern replacement for the C207.
brgds
421C