Again, I think, in terms of how much per site, it depends on what it is we are trying to protect. In Lancaster Sound, there's a very important migratory area.
It depends on the physical features that drive that ecosystem. We look at the physiography, the subsurface, and things like that, but ultimately the boundary is determined by working with other levels of government and working with indigenous people.
Traditional knowledge was a really important factor in Lancaster Sound, in that western science showed us an area of about 44,000 square kilometres, and when you brought in traditional knowledge, we were up to 109,000 square kilometres.
On top of that, it's about looking at potential oil and gas, important fisheries areas, and use and things like that. The approach is done on a site-by-site basis.