About Canada Water Week

Canada Water Week is a week-long celebration of water from coast-to-coast-to-coast, held annually in the third week of March to coincide with World Water Day on March 22.

Individuals, organizations and governments across the country are encouraged to get involved by organizing or participating in fun and educational events. Together, we can raise the profile and understanding of water!

About this year's campaign


Canadian Geographic defines a watershed as “an area of land where all the surface water drains into the same place, whether it's a creek, a stream, a river or an ocean.” That means that no matter where you are in Canada, you’re standing in a watershed!

There are five main watersheds in Canada, the Atlantic, the Hudson Bay, the Arctic, the Pacific and the Gulf of Mexico. The largest of these is the Arctic Watershed, which includes the mighty Mackenzie River Basin, covering 1.8 million sq. kilometres and draining 18 per cent of Canada’s land-mass! There are literally hundreds of smaller sub-watersheds throughout Canada that drain into our local lakes, rivers and streams. Want to find yours? Check out this handy online tool!

Despite the name, however, there is a lot more to watersheds than just “water.” From towering mountains to flat prairies, from the tundra to all ocean coasts, from cities to towns, from forests, wildlife and fish to villages, ranches and farms, watersheds are puzzles with an infinite amount of pieces.

To learn more about Canada’s watersheds, the role they play in our lives and the challenges they face from industry, agriculture and climate change, look to these educational resources: