Opening hours vary, depending on the season.
Admission is free.
Wikipedia https://en.wikipedia.org/wiki/Montmorency_Falls
Official Website https://www.sepaq.com/ct/pcm
Information at Sepaq.com http://www.sepaq.com/ct/pcm/information.dot?language_id=1
Coordinates 46°53'20.689" N -71°8'53.229" E