Built for use as auxiliary craft, Grizzly primarily served as an at-sea training platform for junior naval officers, boatswains, reserve personnel and Sea Cadets at Canadian Forces Base (CFB) Esquimalt.

[3] Like other YAG 300 vessels, Grizzly was 75′ long overall, 18′6″ wide, had a draft of 4′6″, measured 70 tonnes, and was powered by twin 6-71 Detroit Diesel engines.

Re-designated as YFP 306 (Yard Ferry, Personnel) in 1960, she was transferred to reserve status due to defence budget cuts.

[4] Returned to service in the mid-1960s, Grizzly was re-designated as a YAG and in 1976 she was assigned to HMCS Discovery Naval Reserve Division as a tender.

[5] Grizzly served as a training vessel for regular and reserve forces until she was removed from service in 2007.