I took 4 French exchange students to the Phillip Island Wildlife Park. They all agreed that it was the highlight of their trip to Australia. They were able to feed and pat the Kangaroos, get close to Koalas and see many Australian native animals - some of which they had never even heard of or read about before (eg wombats). They also learnt that the Tasmanian devil looks nothing like the spinning creature depicted in the Bugs Bunny cartoons.
I highly recommend this attraction for international visitors. It is great value for money!