The Bay of Fundy Phenomenon is a natural phenomenon that occurs in the Bay of Fundy, located between the provinces of New Brunswick and Nova Scotia in Canada. It is characterized by the highest tides in the world, with the water level rising and falling up to 16 meters (52 feet) twice a day. The cause of this phenomenon is the unique shape of the bay, which amplifies the tidal range. The term for this phenomenon is 'TIDE', which is a four-letter word.