Ohau Canal (left) meets Pukaki Canal, near Twizel, Mackenzie Country, South Island, New Zealand - aerial

Ohau Canal (left) meets Pukaki Canal, near Twizel, Mackenzie Country, South Island, New Zealand - aerial

Ohau Canal (left) meets Pukaki Canal, near Twizel, Mackenzie Country, South Island, New Zealand - aerial

Ohau Canal (left) meets Pukaki Canal, near Twizel, Mackenzie Country, South Island, New Zealand - aerial