Next door to the Botanical Garden is the Butterfly Conservatory
http://www.niagaraparks.com/garden-t...servatory.html

They describe it, “This magical attraction features over 2,000 colourful tropical butterflies floating freely among lush, exotic blossoms and greenery. Paths wind through the rainforest setting, past a pond and waterfall and the Emergence window, where butterflies leave their pupae and prepare to take their first flight!” This is all indoors under a glass roof.

My wife and I enjoyed it very much.

John Powers