Higher than Niagara Falls, and twice as wide, with 275 cascades spread in a horseshoe shape over nearly two miles of the Iguaçu River, Iguaçu Falls are the result of a volcanic eruption which left yet another large crack in the Earth. During the rainy season of November to March, the rate of water going over the falls may reach 450,000 ft3 (12,750 m3) per second.
