The best option for water features (lakes, rivers, streams) and parks is to get
Metroguide Canada v5. It has great coverage for Canada.
Here's a link to
Metroguide Canada on Garmin's map viewer. They now have MG Canada v5 on display in it so you can take a look and see what you think. The online map viewer is an ugly piece of work so be prepared to have patience with it. The maps are really great so don't let the online viewer scare you off. If there is a particular area you would like to see as an example just ask and we'll post a screen shot for you.
...ken...