For drowning, you have to look at the different age groups for very young children. Bathtubs are the location where we see a lot of the drownings happening, so it's supervision and educating parents that not even for a second can they leave the room to answer a phone or grab a towel. The use of bath seats provides a false sense of security, so it's not to use those as a device, if at all; people put their children in bath seats and feel like they can run out for just a second, when in fact that's not the case.
For older kids, it's backyard pools, especially in urban areas. The best evidence that we have from research right now is for four-sided pool fencing with a self-closing, self-latching gate. What that means is that the home currently, in most bylaw,s forms the fourth side of the pool enclosure, which means that any children living or visiting those homes can gain access to the pool because there is no fence between the house and the pool with a gate. The scenario that we see most often is children drowning in their backyard pools when they're not meant to be swimming, so this isn't during a swimming event generally. They're gaining access to the pool from the home.