I tagged along with Adrian to the big marine biology conference held every other year. This year it was in Quebec.
The St. Lawrence sea way is home to many whales large and small including minke, beluga, fin, blue, sperm, and humpbacks among others. We were not lucky enough to see anything to exotic (i.e. photogenic) species, but we did see plenty of beluga and minke whales (who don't generally clear the surface).
See The 13 Whales of the St. Lawrence reference for more information.