Vancouver Island is only a small part of the West coast of Canada.
I spent a fortnight in campsites in Washington State frequented by bears - black bears. The sites had bearproof boxes where you left your food and soaps/deodorants. Black bears tend to be easily frightened off by shouting and making yourself appear to be huge by flapping your arms around. This usually works unless you get between bear cubs and their mothers in which case you need to be able to run faster than your camping companions. I chose not to wild camp in known bear territory though quite a lot of Americans do so. They bag up their food and suspend it out of reach of bears quite some distance from their tents. They also cook well away from the tents.
I met two people who had encountered bears while out and about; a cyclist who met one in the middle of the road - it was startled and scrambled off into the woods next to the road and a camper who had a grizzly bear sniffing around her tent while she was inside - she suspects that her lip balm was the attractor. The bear lost interest and ambled off - I'd have lost my bowel contents.
Asking the locals can lead to answers like, 'There's no bears around here because the cougars ate them all'
There has been a bear fatality this year - a National Park employee was killed and partly eaten by a grizzly bear. The employee got between a mother and cubs and, furthermore against all employee rules, he wasn't carrying bear spray. The bear was captured and killed and the cubs have been placed into zoos.
Cougar attacks are even rarer than bear attacks.