Aoraki / Mount Cook is the highest mountain in New Zealand. Until 2014, its height was officially listed as 3,754 metres, but new measurements have given a revised height of 3,724 metres (12,218 ft). It lies in the Southern Alps, the mountain range which runs the length of the South Island.
A popular tourist destination, it is also a favourite challenge for mountain climbers. Aoraki / Mount Cook consists of three summits lying slightly south and east of the main divide, the Low Peak, Middle Peak and High Peak, with the Tasman Glacier to the east and the Hooker Glacier to the west.
Although its upper reaches are snow-covered, rocks carried by the glacier are exposed by ablation along its course, and the lower glacier is entirely rock-covered. It is almost met near its end 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.
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 New Zealand's longest glacier. You can clearly see the effects of global warming which has caused the glacier to retreat up the valley, as evidenced in the original iced scouring line half way up valley wall.