Came here for the first time on Montreals annual Museum Day in May which means lots of people but free admission. We got here early and lined up behind the endless stream of people going into the place. The Biodome is basically made up of different habitat areas that house different areas so you can wander through each once and try to spot the animals. The areas include Rainforest, Antarctica, Ocean, Maple Forest. The areas are well set out although in some areas it is a battle to see any animals between the huge number of visitors and the very well done habitats that the animals just hide in. If you have never seen these kind of animals like Penguins up close then it is a good attraction or it is raining and there is nothing else for the kids to do but overall I couldn't find reason to spend more than an hr there and that was despite the queues to get through the place. Definitely not worth a special visit or the expensive admission fee, might as well go visit a real zoo or better yet a National Park where you can see the real thing.