Saint John
Open:Year-round
Watch the Saint John River clash with Bay of Fundy tides at Reversing Falls Rapids, where whirlpools, standing waves and a dramatic flow reversal appear every 12.5 hours. Observation decks, glass-bottom skywalks and jet-boat tours reveal the power of an eight-metre tide range, while panels explain the geology below. Visit at low, slack and high tide for three distinct shows.