1) There is a huge rivalry between Melbourne and Sydney. I made the mistake to say to 2 girls from Melbourne that I had been to Sydney during my trip and that I wouldn't go to Melbourne. I won't do it again. Which one is the best then? Half the tourist I met told me "Most people prefer Sydney to Melbourne anyway" and the other half told me "Most people prefer Melbourne to Sydney anyway". But all of them agreed that they had stayed too long in Brisbane. I stayed half a day and I agree.
2) The Sydney opera house is the 2nd most expensive human construction after the Canal of Suez. Someone messed up big time at some point I guess. And the acoustic inside is terrible because the danish architect left in the middle of the building process. All this makes laugh people from Melbourne.
3) There is more sand on Fraser Island than in the Sahara desert.
4) The existence of Fraser Island (it's on the east coast, 200km north of Brisbane)
5) Jelly fishes killed hundred more humans than sharks in Australia. Somehow, even knowing that, I would still be more impressed in front of a big shark.
6) You can buy kangaroo steaks in supermarket (I ate some and to give you an idea, it tastes like koala). Yesterday I ate some crocodile in a restaurant, it tastes like chicken, but don't say that in front of a crocodile.
7) The easiest place to have sex in Australia is in Bondi Beach, Sydney. Somehow, I have the feeling that it will be the easiest thing to remember for those who read this post. Melbourne people disagree with that fact.
8) Burgers Kings are called Hungry Jack here. But they don't have kangaroo whopper.
9) 90% of the population of the east of Australia is concentrated in Perth (2 million people). I agree that it's probably less interesting that the line about Bondi Beach.
10) I will never be a proper surfer (OK I kind of knew that before)
Fraser Island, a great place to put your name in the guinness book and build the biggest sandcastle ever made.