Witnessing the tidal bore is something of a right of passage for tourists. As the giant tide rises in the Bay of Fundy, it pushes upstream against the flow of the chocolate-colored Petitcodiac River. The result is a solid wave unfurling like a carpet down the riverbed in one dramatic gesture. The height of this oncoming rush can vary from just a few centimeters to over 1m; it's usually somewhere in between.
Tide times are posted everywhere, including on the digital billboard outside Tidal Bore Park – the place to see the action. You may see locals surfing the wave; in 2013 they broke a world record by riding it for 29km. Unless you're an experienced surfer with knowledge of the river, don't try it.