I finally got to visit Sydney Aquarium last weekend. It was quite impressive - some very good displays there. Not a lot of exotic fish, mostly focussing on Australian fish - not that this is a problem, there were a LOT of tourists there who I'm sure would love to see our local marine life. Quite a good platypus display, some excellent tropical fish displays and the seals and sharks are pretty impressive. The only negative comment I would make is that the underwater viewing areas in the shark and seal areas should have moving walkways which forces people to move along rather than block the walkway - especially when it's busy. We made the mistake of going in to town after lunch on ANZAC day, after all the parades, and naturally a lot of families who had come into town for the parade decided to make a day of it and many visited the aquarium, so it was quite busy and crowded in places. This was worst in the underwater viewing areas. Overall, I was quite impressed, and it is in an excellent location there on Darling Harbour, so is ideal for tourists to go and visit.