"Orca" is a word used to refer to a large, black and white marine mammal that belongs to the dolphin family. It is commonly known as a killer whale. Full definition
Both species of orca whales in the San Juans apparently live throughout the world but more study is needed to confirm this. (sea-quest-kayak.com)
Photo of Orca Whales in Johnstone Strait near the Robson Bight Reserve off Northern Vancouver Island in British Columbia, Canada (hickerphoto.com)
While we have a 98 % success rate for seeing orcas in thsi Robson Bight region, they are wild animals that roam at will and thus, we are unable to guarantee a sighting. (seakayakadventures.com)