Aoraki / Mount Cook

The short answer

Aoraki / Mount Cook is the highest mountain in New Zealand, 3,724 metres at its highest point according to a 2013 survey led by the University of Otago. It stands in the Southern Alps / Kā Tiritiri o te Moana on the South Island, between the Hooker and Tasman glaciers, inside Aoraki / Mount Cook National Park, which was established in 1953 and is part of the Te Wāhipounamu – South West New Zealand World Heritage Area. To Ngāi Tahu, the iwi of most of the South Island, it is Aoraki, the most sacred of the ancestors from whom they descend. Most visitors see it from the Hooker Valley Track, a three-hour return walk from the end of the road.

Why it's worth knowing

For most of a century the mountain’s height was 3,764 metres: G. J. Roberts measured it from the west in 1881 and T. N. Brodrick from the Canterbury side in 1889, and their figures agreed closely. Then, in the early morning of 14 December 1991, Te Ara records, about 12 million cubic metres of the mountain collapsed, roared down the ice fields of the east face and fell onto the Tasman Glacier on the valley floor. The summit was about ten metres lower afterwards.

It kept shrinking. In November 2013 a climbing expedition led by the University of Otago took high-accuracy GPS readings at the top, confirming calculations from aerial photographs by Pascal Sirguey and Sebastian Vivero, working with GNS Science and New Zealand Aerial Mapping. The mountain was 3,724 metres, thirty metres below the height recorded after the collapse. The university attributes the difference to two decades of erosion of the ice cap the collapse had left exposed.

The loss fits the way these mountains work. Te Ara says the Southern Alps have risen at an average of about a centimetre a year over the last five million years, and that erosion has kept pace, so that they have never been much higher than they are now. The height of Aoraki is a reading taken in the middle of a contest between rising rock and falling ice, and lately the ice has been losing ground faster than the rock can make it up.

The mountain is also somebody. The Department of Conservation, which manages the park, describes Aoraki as the most sacred of the ancestors from whom Ngāi Tahu descend, the source of the iwi’s sense of identity and purpose, and says Ngāi Tahu believe it is not appropriate to climb onto what is effectively the head of an ancestor. The Ngāi Tahu Claims Settlement Act 1998 made its official name Aoraki / Mount Cook and gave it Tōpuni status, a symbolic cloak of protection. It also provided for a double transfer: the Crown is to vest the mountain in Te Rūnanga o Ngāi Tahu, which is to give it back seven days later, as a gift to the people of New Zealand, on a date set by Order in Council. Te Rūnanga o Ngāi Tahu describes the gift as a symbol of its commitment to co-management. Wikipedia records that neither transfer has yet taken place and that Ngāi Tahu will decide when; this entry found no record of a date being set.

The field notes

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The night the top came off

The 1991 collapse came off the northern part of the summit ridge, the High Peak, in the early morning. Te Ara’s account has the debris running the length of the east face’s ice fields and out onto the Tasman Glacier. Wikipedia’s summaries put the volume at between 10 and 14 million cubic metres, depending on the source; this entry follows Te Ara’s 12 million.

The mountain has three summits along a near-horizontal ridge, from south to north the Low Peak, the Middle Peak and the High Peak, which gives it its blocky profile when seen from the east or west.

Climbing it, and stopping short

The first recorded attempt, in 1882, came within about twenty metres of the top, the Department of Conservation says. The first ascent was made on 25 December 1894 by three New Zealanders, Tom Fyfe, Jack Clarke and George Graham. Freda Du Faur, in 1910, was the first woman to reach the top.

It remains a serious mountaineering objective: heavily glaciated, crossed by large crevasses and exposed to avalanches, ice and rock fall and fast changes of weather. And out of respect for Ngāi Tahu, the New Zealand Alpine Club reports, guided parties do not set foot on the true summit, and most other climbers follow the same practice; guides are given material explaining why.

Two names, one order

Captain John Lort Stokes named the mountain Mount Cook in 1851, after James Cook, who never saw it. The 1998 settlement restored the Māori name alongside it, and Wikipedia notes that Aoraki / Mount Cook is the only one of the settlement’s dual names in which the Māori name comes first. The name was long written Aorangi, in the northern dialect.

In Ngāi Tahu tradition, as Wikipedia summarises it, Aoraki was a son of Rakinui, the Sky Father. When his canoe ran aground and tilted, he and his brothers climbed to its high side and were turned to stone by the south wind: the canoe became the South Island, Te Waka o Aoraki, and Aoraki, the tallest, the highest peak.

The park

The Department of Conservation says glaciers cover 40 per cent of Aoraki / Mount Cook National Park and that it holds 19 peaks over 3,000 metres; Wikipedia gives its area as 707 square kilometres, established in October 1953. Mount Cook Village, the only settlement, lies about 15 kilometres south of the summit. The weather arrives from the west: Wikipedia gives the western slopes well over 10,000 millimetres of rain and snow a year, and the village 4,484.

A relic from Aoraki

Getting there

How to get there. The village is small, so book a bed ahead in summer.

The walk. The Hooker Valley Track starts at the White Horse Hill car park at the end of Hooker Valley Road and takes about three hours return on a gravel path with three swing bridges over the Hooker River, ending at Hooker Lake beneath the mountain. The Department of Conservation says the second bridge, opened in July 2026, is at 189 metres the longest suspension bridge in New Zealand. Icebergs float in the lake in summer; the Department of Conservation warns visitors not to climb on them, because they are unstable and can roll. For a second view, the Tasman Lake track leads to the lake at the end of the Tasman Glacier.

When to go. The mountain is often in cloud. Walk early, and allow a spare day in case the first one is grey. Weather changes fast at any time of year.

Climbing. Only with mountaineering experience or a licensed guide, and in the knowledge that Ngāi Tahu ask climbers not to stand on the summit.

A proposed charge for international visitors. The New Zealand Government is investigating an access charge for international visitors at four sites, Aoraki / Mount Cook among them; New Zealanders and residents would still enter free. The Department of Conservation says the Conservation Amendment Bill must become law before it can charge international visitors; the Bill was introduced on 7 May 2026, had its first reading on 12 May, and when the Department’s page was read on 24 October 2026 it still faced select committee and two further readings; the Environment Committee released an interim report on 3 September 2026. The Department’s 2024 consultation factsheet anticipated a charge of NZ$20 to NZ$40, with the rate to be set after local consultation, and its May 2026 factsheet says it is investigating charges at the four sites from the summer of 2027/28.

For stargazers

Dark-sky status

The Aoraki Mackenzie International Dark Sky Reserve was created in 2012 and takes in Aoraki/Mt Cook National Park and the Mackenzie Basin, 4,367 km² in all.Source: Aoraki Mackenzie International Dark Sky Reserve · read 31 October 2026

Viewing spots

The Hermitage Hotel has telescopes and a planetarium for stargazers, and the village has all downcast lighting.Source: Department of Conservation (Aoraki/Mount Cook National Park) · read 31 October 2026

Visitor rule

The Mackenzie District Council's District Plan sets strict lighting rules, such as shielding every light from above so it points downward.Source: Aoraki Mackenzie International Dark Sky Reserve (lighting guidelines) · read 31 October 2026

All 21 night-sky places →

The national park

The park

Part of the Te Waipounamu - South Westland World Heritage Area.Source: Department of Conservation, New Zealand (Aoraki/Mount Cook National Park) · read 5 November 2026

Known for

19 peaks over 3,000 metres.Source: Department of Conservation, New Zealand (Aoraki/Mount Cook National Park) · read 5 November 2026

In numbers

Glaciers cover 40% of the park.Source: Department of Conservation, New Zealand (Aoraki/Mount Cook National Park) · read 5 November 2026

All 41 national parks →

Common questions

How high is Aoraki / Mount Cook?

3,724 metres, according to a 2013 survey led by the University of Otago that combined aerial photography with GPS readings taken on the summit. Aoraki / Mount Cook, New Zealand’s highest mountain, had been measured at 3,764 metres from 1881 until a collapse in December 1991 lowered it by about ten metres; erosion of its ice cap took off about thirty more.

Why did Aoraki / Mount Cook get shorter?

Two reasons. On 14 December 1991, Te Ara records, about 12 million cubic metres of rock and ice collapsed from Aoraki / Mount Cook onto the Tasman Glacier, taking about ten metres off the top. The University of Otago attributes a further thirty-metre loss, found in its 2013 survey, to two decades of erosion of the ice cap the collapse exposed.

What does Aoraki mean to Ngāi Tahu?

Aoraki is the most sacred of the ancestors from whom Ngāi Tahu descend, according to the Department of Conservation, which manages Aoraki / Mount Cook National Park. The mountain gives the iwi its sense of identity and purpose, and under the Ngāi Tahu Claims Settlement Act 1998 it has Tōpuni status, a public symbol of Ngāi Tahu’s authority and relationship with the land.

Can you climb to the summit of Aoraki / Mount Cook?

Experienced mountaineers climb Aoraki / Mount Cook, but not onto the very top. The Department of Conservation says Ngāi Tahu believe it is not appropriate to climb onto what is effectively the head of an ancestor, and the New Zealand Alpine Club reports that guided parties do not set foot on the true summit. The climb is heavily glaciated and exposed to avalanches and rock fall.

Why is it called Aoraki / Mount Cook?

The Ngāi Tahu Claims Settlement Act 1998 changed the mountain’s official name from Mount Cook to Aoraki / Mount Cook, restoring its Māori name. Captain John Lort Stokes had named it Mount Cook in 1851 after James Cook, who never saw it. Wikipedia notes that it is the only dual name from that settlement in which the Māori name comes first.

Was Aoraki / Mount Cook given to Ngāi Tahu?

Not yet, as far as this entry could find. The Ngāi Tahu Claims Settlement Act 1998 provides for the Crown to vest Aoraki / Mount Cook in Te Rūnanga o Ngāi Tahu, which is to give it back to the people of New Zealand seven days later, on a date set by Order in Council. Wikipedia records that neither transfer has happened and that Ngāi Tahu will decide when.

What is the best walk to see Aoraki / Mount Cook?

The Hooker Valley Track, about three hours return from the White Horse Hill car park near Mount Cook Village, according to the Department of Conservation. It crosses the Hooker River on swing bridges and ends at Hooker Lake, directly beneath Aoraki / Mount Cook, where icebergs float in summer. The Department warns visitors not to climb on the icebergs.

Will international visitors pay to visit Aoraki / Mount Cook National Park?

Not yet. The New Zealand Government is investigating an access charge for international visitors at four sites, Aoraki / Mount Cook National Park among them. The Department of Conservation says the Conservation Amendment Bill must become law first; on 24 October 2026 the Bill had passed its first reading and still faced select committee and two further readings. A 2024 Department factsheet anticipated NZ$20 to NZ$40, and a May 2026 factsheet names the summer of 2027/28 for the charges it is investigating.