Visit the mighty Huka Falls where more than 220,000 litres of water tumbles over a cliff face every second! The Waikato River, New Zealand's longest river, moves gracefully north from Lake Taupō between banks 100 metres apart. Just before the Huka Falls it enters a shallow ravine of hard volcanic rock. The effect is nature's large-scale equivalent of a fire hose feeding into a very fine nozzle.