Many animals are nocturnal, so a zoo is how to guarantee a sighting. There are plenty of wildlife tours (both day and night) with experienced guides that would be more fun than a zoo, although no guarantee of sightings. There are also specialist parks, e.g. Trowunna Wildlife Park, which might be an option.
Also the Tasmanian Devil population in Tasmania has suffered badly because of a strange 'cancer-like' virus and many have been captured and taken to the Mainland for breeding and isolation from the virus.
I would love to see quolls in the wild. It's on my bucket list.
