First, concerning vessels such as icebreakers, Canada is certainly not able to navigate all of its own internal waters at present because it does not have icebreakers that are large enough and powerful enough to, for example, follow the dividing line that Bill C-3 will draw in the north. That line runs nearly as far north as the polar ice cap, where the ice is so thick that none of our icebreakers can get through it, at least not in winter. They might be able to get through some if it in summer.
Therefore, Canada will certainly have to think about a large icebreaker that will cost hundreds of millions of dollars. I do not have any exact figures, but we are talking about quite a lot of money.
But how can we exercise our sovereignty over an area we cannot even get to ourselves? It makes no sense if we cannot even get around our own territory. Sovereignty and the environment are closely linked. As a result, we need vessels, first to operate the Northwest Passage and keep it open, once we decide it is open. Then, we have to be able to get around our territory, which will obviously cost hundreds of millions of dollars.