Koalas in Canberra are extinct, which is a great shame. Tidbinbilla Nature Reserve used to have a few captive koalas, but from what I have been told all but one of them died in the big 2003 bush fires. Poor things.
Some koalas have been translocated back to the reserve recently and I saw those. They have a little house there, where some of them sleep. They live up to the cuteness standards.
I was also lucky enough to see one of them awake and climbing around. At one point he was hanging using only his arms,flailing his legs around - pretty funny sight!