For the limited space available, Biodome de Montreal does a wonderful job of displaying some amazing open exhibits. And in contrast to aquariums/zoos in the U.S., these exhibits seem much more open in terms of being able to see the animals at a much closer distance.
The layout is efficient, as you're basically led through one direction with different sections for tropical, forest, and marine animals. For the price, you can't really beat it for the entertainment value you get. And of course, you're supporting a great cause as with most wildlife exhibits.
I'd come back