Kosciuszko is in my Australian geography A to Z quiz (what a giveaway!), and I am trying not to repeat those answers in the Australian geography quiz for each letter. Must have overlooked koalas. Always leave them wanting more I suppose.
Accepts Kangaroo for Kangaroo Island, but not King for King Island. The problem is that with Kings Canyon lurking as another answer you might need to introduce a different question to one of them (enter stage left Koala or Kosciuszko perhaps, but for God's sake please allow heaps of spelling options. I get that mountain "wrong" every time even though I can say it perfectly well).
Ok, because of your feedback I have accepted King for King Island. That means that someone who knows Kings Canyon could get King Island first by accident, but that's ok, these things happen.
No koala?