I've always make a point of visiting aquariums wherever I travel. Having been to several dozen all over the world I'd rate AQWA as the equal worst Ive been to.
Admission prices are very steep ($28/adult, $16/child, $75/family) for a very disappointing experience that will take less than an hour to walk through.
Supposedly the aquarium is designed to show the diversity of the aquatic life along the West Australian coast. This is an excellent idea in concept but AQWA fails miserably to fulfill this potential.
The range of environments and fish on show is particularly limited with numerous tanks containing essentially the same display from the local waters around Perth. No longer does the AQWA have seals, dolphins or dugongs. In particular the showpiece walk in tank contains the same display as seen in more than one smaller display elsewhere in the complex. For those with young children in strollers, access downstairs to the showpiece walk-through tank is very difficult as the only way down is via stairs or a tiny, antiquated, slow and creaky lift on it's last legs. I ended up having to physically carry my young one and stroller down the stairs.
Displays from elsewhere along the coast are absent or sparsely populated with fish and the saltwater crocodile display was a huge disappointment with the juvenile crocodiles not even visible.
Furthermore, the design of the complex is also poor with visitors being led on essentially a one way (rather than roundabout trip) to the large display tank outdoors and then having to backtrack to make your way out of the complex. Additionally, the outdoors touch tank was quite disappointing for my children with very little available for the kids to touch and experience whilst staff at AQWA seemed very bored and disinterested.
Finally, the cafe food was mediocre and again terribly overpriced. I was particularly unimpressed to see them charging $1.50 for tomato sauce to go with chips.
In summary, I'm quite disgusted with the aquarium and the atrociously poor value for money.