Étienne Brûlé Park near the Humber River is a route the Anishinaabe people used to refer to as "Kabechenong," which means "leave the canoes and go back".
This route was a portage route that took you all the way from Lake Ontario up into the lower parts of Lake Simcoe and that route is really an important trade route pre-colonial. The area became important in Canada's early fur trading. The route was used by Indigenous trappers and later on by French and British trappers.
If it wasn't for this route we would not be here today. The very first European settlements or buildings to be built in Toronto are actually French fur-trading forts and they're situated around this river.