Experience the highest tides in the world!

Saint John is the only city on the Bay of Fundy, where the tides rise and fall by 8.5 metres (28.5 feet) twice daily. Watch the Saint John River collide with the Bay of Fundy's monstrous tides creating the Reversing Falls Rapids at various lookouts, including Wolastoq and Fallsview Park.

At low tide, the full force of the Saint John River rolls and swirls into the Bay, creating a series of whirlpools and rapids, while at high tide, the Bay of Fundy's tides rise, gradually reversing the flow of the river, forming rapids and standing waves. Between these two extremes comes a period of slack tide, where the two bodies of water meet with equal force, creating a brief period of flat calm. This is the only time sail boats and pleasure crafts can sail between the two. Visit the Plank at Reversing Falls to learn more about the phenomenon, the geology, and the history during a 13-minute film in their rooftop theatre and take in the phenomenon from above on a 110-foo-thigh lookout.