The waters off the Pacific Northwest coast of North America are said to be the home of the Cadborosaurus, a snakelike sea creature that reportedly has been sighted from Oregon to Alaska. But most of the glimpses of “Caddy,” as the monster is affectionately called by cryptozoology buffs, have occurred in the inland waters near Vancouver Island and in Cadboro Bay near Victoria, British Columbia. 

Loren Coleman’s and Jerome Clark’s 1999 book Cryptology A to Z notes that a Caddy-like creature figured in the legends of aboriginal Canadian people, and that some ancient petrographs seem to depict the beast. In the past 200 years, there have been scores of reported sightings as well. 

An illustration of Caddy:

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An article on the website of the British Columbia Scientific Cryptozoology Club notes that one of the most tantalizing reported encounters with the aquatic cryptid was in 1937. Queen Charlotte Islands workers, who were butchering a newly caught whale, discovered in its stomach a puzzling 10-foot-long creature with a camel-like head, elongated body of serpentine proportions, and strangely shaped flippers and tail. Though the body was not preserved, photographs and tissue samples were sent to the provincial museum in Victoria for analysis. A scientist there identified them as belonging to a baleen whale, a conclusion that cryptozoology enthusiasts claim was erroneous.

Vancouver biologist Edward L. Bousefield and Paul H. LeBlond, a sea captain professor of oceanography at the University of British Columbia, drew upon such accounts to create a composite portrait of Caddy in their 2000 book, Cadborosaurus: Survivor from the Deep. 

According to the BCCC website, LeBlond also is one of the few to claim to have captured a living Caddy specimen, while on a family yachting voyage around the Gulf Islands of British Columbia. Hagelund snared a small creature, about 16 inches in length, that had been swimming near his craft, and put it in a bucket of seawater for further study by marine biologists. He described it as having armored plates and a strange elongated snout with odd forward flippers, a yellow downy fuzz and a tail similar to a sea lion. During the night, the creature became agitated in captivity, and LeBlond–who feared that it would not survive–reluctantly released it before he returned to shore.

BCCC says the most recent sightings occurred off Qaulicum Beach and Victoria, in late 2006. 

Another illustration:

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Some have suggested that Caddy may be related to other mysterious creatures that have been spotted along the west coast of North America, including the Stinson Beach sea serpent, a 100-foot-long creature with undulating humps reportedly spotted by state transportation workers in 1983, and the aquatic cryptid Colossal Claude, reportedly first glimpsed off the Oregon coast in 1934.