Atlantic Canada: four provinces on the edge of the ocean

Lunenburg, Nova Scotia, four in the morning, the first week of the lobster season, diesel and cold salt air on the wharf. Colin Tanner is fifty-five, the seventh generation of his family to fish this shore. His deckhand, Fatou Diallo, is twenty-seven, Senegalese-Canadian, with a marine-biology degree from Dalhousie. They are loading traps by headlamp, and the tide table on the wheelhouse wall matters more than the clock.

So here's the question. Four provinces share the Atlantic edge of the country. What do the sea, the rock and the tide do to how people make a living here, and why are there so many harbours?

Start with the rock. The Atlantic provinces sit on the Appalachian region, hills geologists date to roughly 480 to 300 million years ago, worn low and rounded. The high points are modest: Mount Carleton in New Brunswick about 820 m, the Lewis Hills in Newfoundland 814 m, Prince Edward Island's highest ground about 140 m. Cape Spear is the easternmost point.

Now the sea. Statistics Canada puts the Bay of Fundy's mean large tide at 16.1 m, Canada's highest; Parks Canada credits an unusual combination of resonance and the shape of the bay. Newfoundland's offshore fields pumped 4% of Canada's oil in 2023. In 2024 Fisheries and Oceans counted $4.0 billion of sea-fishery landings, nearly half lobster, with Nova Scotia first at $1.5 billion.

Find it on the map. The map now shows the head of the Bay of Fundy on a 1:250,000 sheet from Natural Resources Canada: one centimetre is 2.5 km. The stippled brown between coastline and blue is tidal flat. Follow any river inland: it runs up a drowned valley, wide at the mouth, which is exactly what a natural harbour is. Find one yourself.

Newfoundland and Labrador was the only province to shrink between 2016 and 2021, down 1.8%; Prince Edward Island grew 8.0%; Halifax's downtown grew fastest in Canada. Together the four provinces made 5.5% of the country's economy in 2024, by Statistics Canada's table. New Brunswick is the only officially bilingual province, and St. John's is the snowiest and wettest big city.

Let's change one fact. Give Prince Edward Island mountains. It has none: about 140 m of low red cliffs and rolling farmland, and a picture generator asked for the island will happily draw peaks anyway. That is why every landscape in this course is a real photograph of the named place, with a credit. If we don't have the photograph, you get the map and my description, never an invention.

The mistake people make is saying the Maritimes when they mean Atlantic Canada. The Maritimes are three provinces: Nova Scotia, New Brunswick and Prince Edward Island. Atlantic Canada adds Newfoundland and Labrador. That four-province grouping, the Atlantic Provinces, is the one the official citizenship study guide uses, and it is one of only two geography questions on the guide's own study list.

Here's the rule, in one breath. Old low hills, a drowned coast full of harbours, the highest tide in Canada, lobster worth nearly half the catch, and four provinces, not three.

This week, open Toporama, the Atlas of Canada's viewer, find the Confederation Bridge that ties Prince Edward Island to the mainland, and measure it with the scale bar. Then find the nearest tidal flat to a coast you know, and check tonight's tide table for it.

Next time, Quebec: the Shield, the river and the hydro, from the St. Lawrence lowland to Nunavik.