The Three Oceans That Border Canada

# The Three Oceans That Border Canada

Canada is bordered by three oceans — the Pacific, the Atlantic, and the Arctic. This maritime geography gives Canada the longest coastline of any country in the world and is a key fact for the citizenship test.

Pacific Ocean (west)

The Pacific Ocean borders British Columbia — Canada's west coast. Major features:

• Vancouver — Canada's largest Pacific port and gateway to Asia-Pacific trade
• Vancouver Island — home to Victoria, BC's provincial capital
• Haida Gwaii — an archipelago with rich Indigenous Haida culture
• The Pacific coast is known for temperate rainforests, salmon fishing, and dramatic mountain-to-ocean landscapes

Atlantic Ocean (east)

The Atlantic Ocean borders the four Atlantic provinces — Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland and Labrador. Major features:

• Halifax — the largest Atlantic port
• St. John's — the easternmost city in North America
• The Grand Banks — one of the world's richest fishing grounds (historically for cod)
• The Bay of Fundy — highest tides in the world (shared by NB and NS)
• Iceberg Alley — off Newfoundland, where icebergs from Greenland drift south each spring

Arctic Ocean (north)

The Arctic Ocean borders Canada's northern coast — across the Yukon, Northwest Territories, Nunavut, and the northern edges of Manitoba, Ontario, and Quebec (via Hudson Bay). Major features:

• The Northwest Passage — a sea route through the Arctic Archipelago connecting the Atlantic and Pacific
• Thousands of Arctic islands, including the Canadian Arctic Archipelago
• Sea ice that varies seasonally — shrinking in recent decades due to climate change
• Rich in marine life — beluga whales, narwhals, polar bears, walrus

Canada's coastline is approximately 243,000 km long — more than any other country. For comparison:

• Indonesia (second): ~55,000 km
• Russia (third): ~37,000 km

The extreme length is due to the Arctic Archipelago — thousands of islands with deeply indented, irregular coastlines.

Canada's motto — "A Mari Usque Ad Mare" — means "From Sea to Sea" in Latin. It comes from Psalm 72:8 and was adopted when Canada stretched from the Atlantic to the Pacific. The Arctic Ocean is sometimes added informally, making the phrase "From sea to sea to sea."

See [The Coat of Arms of Canada Explained](/blog/coat-of-arms-canada-explained) for more on the motto.

Common citizenship-test questions:

• Name the three oceans that border Canada *(Pacific, Atlantic, Arctic)*
• Which ocean is on Canada's west coast? *(Pacific)*
• Which ocean is on Canada's east coast? *(Atlantic)*
• What is Canada's motto? *(A Mari Usque Ad Mare — From Sea to Sea)*

For more on Canada's geography, see [The Five Regions of Canada](/blog/five-regions-canada-explained).

Try our [free practice test](/practice-test) — it covers ocean questions in the same format you will see on test day.