The risks on the B.C. coast are different, there's no doubt. I'll start by talking about one that doesn't exist. For example, you don't have ice in Port Metro to deal with, which changes the scenario significantly. I think the two factors for Vancouver that are most significant are the volume of traffic—there is a very large number of ships in and out of Port Metro and the Fraser River, as has already been alluded to—and then simply the geography itself.
I had occasion recently to stand in our marine communication centre and watch our experts helping to navigate the B.C. ferries, helping to navigate the larger ships in and out of Second Narrows and places like that. That geography is challenging, there's no question about it. The pilots are critical to the success of navigation in that area.
Those are the two that I think really stand out for the Lower Mainland. As you go up the coast, there's a volume issue for sure. The number of ships that move from Alaska to the U.S. mainland, for example, certainly creates a volume issue up the coast as well.
Mario, are there any other risks I'm missing that are specific to that region?