Bay of Fundy Nature Conservancy of Canada. Some sources believe the name "Fundy" is a corruption of the French word "Fendu", meaning "split", while others believe it comes from the Portuguese "funda", meaning "deep". The bay was also named Baie Française (French Bay) by Samuel de Champlain during a 1604 expedition to St. Croix Island. The Bay of Fundy has a high tidal range. Oceanographers attribute it to tidal resonance resulting from a coincidence of timing: the time it takes a large wave to go from the mouth of the bay to the inner shore and back is practically the same as the
Bay of Fundy throughout the tidal range of the rivers. Another phenomenon which occurs in these rivers of the upper bay is a "tidal bore", where a wave front of water "bores" its way up a river against its normal flow. The narrow and shallow river estuaries around the upper Bay of Fundy regularly produce bores when the advancing tide is slowed by shallow waters creating a build-up with a steep surge of advancing water. Tidal bores are found on the Salmon River at Truro, the Petitcodiac River at Moncton as well as on the Shubenacadie River, the St. Croix River, the Maccan