Aoraki / Mount Cook

PeaksCanterbury,New Zealand

New Zealand's highest mountain at 3,724 metres, an ancestor turned to stone for Ngāi Tahu, approached on swing bridges under some of Earth's darkest skies.

September·Edge of season

Sep

Spring opens: Glacier Explorers relaunches on 1 September as the Tasman lake thaws, snow starts to leave the valley tracks, and the Milky Way's core still crowds the early-night sky.

Year-round The turquoise lakes, glaciers and alpenglow-lit summit are here year-round; summer eases the valley walks, and clear dark nights bring the Milky Way.

Aoraki, or Mount Cook, is the highest mountain in New Zealand, 3,724 metres of ice and rock standing at the head of a valley in the Southern Alps of the South Island, and for the Ngāi Tahu people of the island it is an ancestor turned to stone, which is why no guided party sets foot on the very top. In the tradition the entire South Island is Te Waka o Aoraki, the overturned canoe of Aoraki and his brothers, who climbed onto its high side and froze into the range; standing on the summit is treading on his head, so climbers stop a step short. The mountain lost ten metres in a night, when the summit ridge collapsed just after midnight on 14 December 1991. The road into the park runs the length of Lake Pukaki, milky turquoise with glacial flour, and Aoraki grows steadily larger ahead of you the whole way, so that the approach is the first view. The walk everyone does is the Hooker Valley track, flat almost the entire way, crossing the braided river three times on suspension bridges that swing under your feet, with the wind as the only difficulty, to a glacial lake at the end with icebergs in it and the south face of Aoraki rising straight out of the far shore. Nearby the Tasman Glacier, the longest in New Zealand, has melted back into a young lake dotted with icebergs, and boats go out among them. The moment to wait for is the last light: as the sun drops behind the range, the high snowfields flare pink and orange for a few short minutes while the valley floor has already fallen into cold shadow. Then the sky takes over. The Aoraki Mackenzie Dark Sky Reserve was the first in the Southern Hemisphere and carries a gold rating for its darkness, and on clear nights the Milky Way arches from ridge to ridge over the peak. Aoraki is a mountain that people are asked not to stand on, and the valley beneath it is where you see why.

Worth knowing

Good to know

Come to the lakes at first light — the peak only mirrors on the water when the air is dead still, and the wind that ruffles it usually rises by mid-morning.
A moonless night shows far more than a bright one — check the moon phase before you travel, bring a red-light torch to protect your night vision, and give your eyes twenty minutes to adjust.
Alpine weather turns within the hour — carry a windproof layer and warm clothing even on a bright summer walk, as cloud and cold can close over the valley without warning.
Kea, the world's only alpine parrot, patrol the car parks — these bold, curious birds pry at rubber trim and unattended bags, so keep gear packed away and never feed them.
Mount Cook Village is the only base inside the park, and its handful of beds fill months ahead — book early, or visit for the day from Twizel or Lake Tekapo.

Things to do

1
Cross the three swing bridges up the Hooker Valley
The track is flat almost the whole way, so the work is in the distance and the wind rather than any climbing, and it crosses the braided river three times on bridges that swing under your feet. Nothing shelters it: you are walking bare moraine the Hooker Glacier stood on a century ago, and the weather up here turns inside an hour. Leave nothing loose at the car park — the kea there pull at rubber trim and open unattended bags.
2
Drive the length of Lake Pukaki
The road into the park runs the length of Lake Pukaki, with the water on one side and Aoraki growing steadily larger ahead of you. Pull-ins along the shore look straight up the lake to the peak, and on a still morning the whole mountain is mirrored in water coloured milky turquoise by rock the glaciers upstream have ground to powder. The colour is strongest under overcast light, not sun.
3
Cruise the Tasman Glacier's iceberg lake
The Tasman is New Zealand's longest glacier, and its meltwater has filled a young terminal lake dotted with icebergs. Small boats weave between the floating slabs of blue-white ice, close enough to touch, beneath the grey wall where the glacier still calves.
4
Watch the summit flush, then read the southern sky
As the sun drops behind the range, Aoraki's high snowfields flare pink and orange for a few short minutes while the valley floor has already fallen into cold shadow. Then the sky takes over: with almost no light for hundreds of kilometres, the night here turns dense with stars. Guides and small observatories point out the Southern Cross, the two Magellanic Clouds — our neighbouring galaxies — and the Milky Way's bright core arching overhead.

Nearby

15 km