Diana thats such a shame…
If the weather is anything during the conference like it is now, you guys are in for a treat let me tell you!
To give you an idea.
It is the start of the second month of spring here (so still 2 months until summer).
I am sitting in an air cond office.. I walked outside to get lunch and it was like a heat wave.. reminded me of the dry heat back in Greece last year… Only it was 46 degrees there… Felt like 46 degrees today, but it was only 31-35 degrees. I’m SO excited about summer..
The unusual thing about the heat outside today is that it’s usually humid when its this hot… But it was very dry. I say “Very Nice” 
So everyone, make sure you bring your togs (aussie for swimsuit, bathing suit, swimmers etc). Its gonna be a hot one!
Also, just checked out the Shangri-la and the rooms look amazing, not to mention the evening view over the opera house and harbour bridge.. very nice indeed – good choice Alex 
I think this is going to be one hell of a conference