I would argue, if I may, that the issue around us using the most up-to-date data that is available to us, both publicly and within the department.... It was used to evaluate navigation patterns and traffic, so the size of the water body is relatively irrelevant, based on the statistics of whether or not it's heavily navigated.
I'll give you a very specific example. If you look at the waterways that make up the Trent-Severn Waterway, you'll see that it's a series of 43 different lakes and rivers, all very tiny if you look at a map of Canada. But with respect to the amount of traffic that goes on there and the level of charts that cover those waterways, they are clearly among Canada's busiest waterways, whereas there are some lakes in northern Quebec where there's very little navigation, if any.