[Bring_Back_Shantz]

I think you're treading on some pretty dicey legal territory carrying a spear around with you.

1) It's illegal to hunt with a spear, if you're walking around with one (especially in a national park) I don't think it would be unreasonable for a CO to assume you are carrying it with the intent to hunt with it, which would be illegal due to timing, and the fact that it's a spear

2) It's legal to carry knives in Canada as tools, but if you're carrying one with the express purpose of self defense then it is by definition a weapon which is illegal (maybe you could talk your way out of it saying it's for bears, but I'm pretty sure it's not legal to carry something potentially lethal in case of a bear attack, that would be a pretty big loophole for poachers).

I'd say if you're in a provincial or national park, you'd almost certainly be in trouble if you ran into a cop/peace officer/conservation officer.

Outside of a park, I'd say it's still a coin flip on whether or not you'd get into trouble for it.

You're an adult, so do what you want, but I'd say you're walking through a legal minefield carrying that thing around with you.