For years Nova Scotia’s Burntcoat Head Park claimed the superior tidal height, but now a challenger from the far north is seeking the crown

For visitors to Burntcoat Head Park in Nova Scotia, a scramble along the russet shoreline of the Atlantic Ocean is a pilgrimage to the site of one of the planet’s great natural wonders.

Twice a day, more than 100bn tons of seawater fills and drains the Bay of Fundy – a figure comparable to the flow of all the world’s freshwater rivers combined.

For that reason, the community has long and proudly proclaimed their far-reaching tides as the world’s highest – a claim confirmed by Guinness World Records.

But a row has broken out over those claims, with a northern Canadian community claiming that new data – and longstanding local knowledge – suggests their tides, in fact, rise higher.