In the Bay of Fundy, in Canada, the difference between high and low tide can exceed 15 metres.
Why it is true
These are the highest tides in the world. The bay's shape and size make the water slosh at the same rhythm as the tides, amplifying the movement. Each tide moves about 100 billion tonnes of water in and out, leaving boats sitting on the mud.
Source: Nova Scotia Tourism (Bay of Fundy)
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