The tourist literature talks up the twice-daily return of the waters of the tidal Petitcodiac River. In theory, the tide comes in as one solid wave, unfurled like a carpet across the muddy riverbed in one dramatic gesture; the height of this oncoming rush can allegedly vary from just a few centimeters to over 1m. Depending on your scientific interests, in reality, it usually just looks like a big mud seep, and can be, well…boring.