Dear Peter and Frank,
We did the tram tour and the river boat tour - full day but worth it. The aerial tram is fun, but we have a great one in Cairns so I was a little disappointed as we were in the rainforest, not above it. Good for rainforest experience though. I did not hear of anyone having problems with taxis, though it is a hike.
The river trip was great for spoting animals, monkeys, birds, crocs etc. Highly recommend this.
Aussies on board - quite a few, the casino, gift shop, coffee lounge in the atrium, photo studio, they are everywhere. You will hear them, they love to say g'day. Mostly working in the guest services areas. Except, Captain Pickford who is an Aussie as well. Do make yourself known especially your wife. They always come thru for me. You know, that last minute gift that I forgot to get for a member of our party - No worries Mich, I will go and open up and get that chain for you - ah love it.
Have a great trip,