Blackfish, aka Orca, or more commonly, killer whale – a creature that inspires awe in BC boaters. “Blackfish” is what the coastal Kwakwaka’wakw band (First Nation’s peoples) the original inhabitants of the Northern Vancouver Island area in British Columbia called the orca. In fact one area most frequented by the orca is known as Blackfish Sound. However, this photo was taken in Knight Inlet as indicated by the colour of the water. Knight Inlet is fed by fresh glacial water and this “floats” on the salt water. The rock flour, or glacial flour, consists of fine-grained, silt-sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion. Those rock particles or glacial milk refract the green spectrum of the sun’s light so it appears green.