Huka Falls is a set of waterfalls on the Waikato River, which drains Lake Taupō in New Zealand. A few hundred metres upstream from Huka Falls, the Waikato River narrows from approximately 100 metres across to a canyon only 15 metres across. The canyon is carved into lake floor sediments laid down before Taupō Volcano's Oruanui eruption 26,500 years ago.