We decided to walk here after visiting the Biodome. The problem? It was a 90-something degree day and the walk isn't as close as tourist sites will have you believe. If you have trouble walking, please take the mini train!
If you're just parking at the Biodome, then it will be a slightly closer walk because the garage is a little closer.
The admission for 2 adults was about $40, which we thought was quite high just to view gardens. We are from Boston and our Arboretum is completely free. We visited in August (with what seemed like half the world), and hardly any flowers were in bloom. The green plants were there, but you can only look at so much greenery before you're bored.
The best part, in my opinion, were the structures of China in the Chinese garden and the animals sculptures throughout the park. Were they worth the $40? Heck no... I think there should be a discount during the months where flowers are nowhere to be found.
*Tip: Go during a festival time where there is more to see. That will make the price tag more worth it.