i dont know where those schools are but i took a trip to australia back in 2008. its a pretty sick place. i stayed on the east coast. went to sydney, surfers paradise, brisbane, gold coast, and cairns.
i had a blast and im sure you will too. there is no skiing though.
i would deffinately take advantage and do it.
Dont sweat it man. its all hyped up. you do have to be more careful than say here in the US.
I spent 3 weeks there. i only saw one yellow bellied black snake just chillin off one of the trails. everywhere else they were just in the zoo (of course). we also took a river tour in upper queensland and saw some gators and crocs. and we went in the winter (january) and that is when the box jellyfish are out. their stings trigger a heart attack.
the most common thing is crocodiles most likely and they usually hang on the coast. there favorite spot is at the mouth of rivers connecting to the ocean.
the biggest this is common sense. obviously dont walk up to it and disturb it. you just have to be cautionous when walking around in the wilderness or water.