NOW OPEN! One of Niagara’s treasures, the White Water Walk is a boardwalk situated on the very edge of Niagara’s whitewater. The Whirlpool was estimated to have been formed approximately 4,200 years ago by the upstream erosion of the Niagara Escarpment by the Niagara River. Trillions of gallons of water pours through the narrow gorge and creates a fury of ferocious Class 6 Whirlpool Rapids. The water that travels through the rapids here clock in at 48 km/hr!