The Tasman Glacier

The Tasman Glacier is the largest of several glaciers which flow south and east towards the Mackenzie Basin from the Southern Alps in New Zealand's South Island. It is by far, the largest of the glaciers flowing towards Lake Pukaki from the Southern Alps. It is about 25 kilometres long and as much as 3 kilometres wide and is entirely within the borders of Aoraki Mount Cook National Park. The depth at its most is 600 meters. The terminal face of the Tasman Glacier at Lake Tasman
The Tasman flows south from the southern slopes of the Minarets peak, along the eastern flank of Aoraki/Mount Cook, the peak of which is only five km from the glacier. It is almost met partway along its length by the meltwater of the Murchison Glacier, which approaches from the northeast before turning to flow beside the Tasman Glacier outside the moraine wall.
The waters from both these glaciers pool at the end of the glacier in Lake Tasman, before flowing south to join the outflow from the nearby Hooker and Mueller Glaciers in the wide valley of the Tasman River, whose braided streams flow south into Lake Pukaki. They eventually flow into the Waitaki River and to the Pacific Ocean north of Oamaru.