It was first spotted in the St. Lawrence River at the end of May.
They certainly weren't expecting the rare sight.
They weren't expecting something this big to crash the party.
"The whales were so close you could touch them."
Whales: they get personal.
"Just an expanse of whales filling the seascape."
"It was one of the most exhilarating moments of my life," said a photographer.
A 1,600 km-wide patch of warm water in the Pacific Ocean has propelled a toxic algae bloom.
Humpback whales are truly princely creatures, and rarely more so than in a drone video captured off the coast of Newfoundland