Staying a bit high over water is your friend. The movement of the water can sometimes confuse the sensors and you may get inaccurate readings for altitude from the controller.
If you want to fly really low just be prepared. You may have to save...
I second the recommendation for Drone Pilot Canada. Can track multiple pilots and aircraft. Can have multiple users. Actively updated. Maps show Transport Canada restrictions based on weight class, optionally DJI and municipal restrictions...
#1 Nav Drone. Only because you'll need it to contact Nav Canada
https://www.navcanada.ca/en/flight-planning/drone-flight-planning.aspx
https://play.google.com/store/apps/details?id=ca.navcanada.navdrone
#2 Drone Pilot Canada It covers...
As far as I understand the law in Canada there is no connection between recreational and commercial operations as far as making money from your drone activities. The need for an advanced license is strictly to do with what type of drone your...