
Sealy Tarns Track
The Sealy Tarns Track climbs about 2,200 steps and 600 m from the Kea Point Track to a set of small alpine lakes above the Hooker Valley in Aoraki/Mount Cook National Park.

Mueller Hut is a 28-bunk DOC alpine hut on the Sealy Range above Aoraki/Mount Cook Village. The route is 5.2 km and about 4 hours one way, with about 1,000 m of climbing via Sealy Tarns. Bookings are required from 2 November 2026 to 2 May 2027, at NZ$50 to NZ$62 per adult per night.
Mueller Hut is a DOC alpine hut with 28 bunks on the Sealy Range, high above Aoraki/Mount Cook Village. The route there is 5.2 km and takes about 4 hours one way, with about 1,000 m of climbing: first the 2,200 steps of the Sealy Tarns Track, then a marked alpine route over rock and scree to the ridge. From 2 November 2026 to 2 May 2027 you must book, at NZ$50 to NZ$62 per adult per night depending on the date.
DOC grades it an advanced tramping track. On a clear day the ridge looks across the Mueller Glacier and the ice shelf on Mount Sefton to Aoraki/Mount Cook (3,724 m). On a bad day it is a serious mountain, and on 11 November 2026 DOC’s alert for the route warned of sub-zero temperatures and ice.
Checked November 2026:
| Stage | Time | Notes |
|---|---|---|
| Village to Sealy Tarns | 2 h | Kea Point Track, then the Sealy Tarns Track: steep steps, 600 m up |
| Sealy Tarns to Mueller Hut | 2 h | Unmaintained alpine route, orange poles every 200 m, a rock field, about 50 m of loose scree to the ridge, then about 20 min along it |
| Mueller Hut to the village | 3 h | Same way back |
| Whole route | 5.2 km one way | About 1,000 m vertical gain; DOC’s map marks the hut at 1,800 m |
| Side trip: Mount Ollivier | 30 min | Rock scramble to the cairn just south of the hut |
Times, distance and grade come from DOC’s route page; the hut height is a label on DOC’s Aoraki/Mount Cook walking tracks map. DOC treats Sealy Tarns as the decision point. Check the weather there, check that everyone in the group is fine, and make sure you can reach the hut before dark.
The scree slope is the crux. At some times of year it turns into a steep snow slope, and DOC advises going on only if you have avalanche knowledge and equipment. Coming down, watch for the orange marker where the route leaves the ridge, and do not cut straight down. Ice is common on the lower ridge in the morning, so DOC suggests waiting for the sun to soften it.
Mueller Hut is a “Serviced Alpine” hut. It has platform bunks with mattresses, gas cookers, solar lighting, a non-flush toilet and tap water that you must boil before drinking. There is a radio check-in with a weather update every day at 4:45 pm.
Fees per night, checked on DOC’s hut page in November 2026:
| Dates | Adult (18+) | Child (5-17) |
|---|---|---|
| 1 May to 30 September | NZ$50 | NZ$25 |
| 1 October to 30 April, weekdays | NZ$55 | NZ$27.50 |
| 1 October to 30 April, weekends | NZ$57 | NZ$28.50 |
| 1 December to 29 February, weekdays | NZ$60 | NZ$30 |
| 1 December to 29 February, weekends | NZ$62 | NZ$31 |
NZ Alpine Club members pay NZ$40, and infants up to 4 are free. Backcountry Hut Passes and hut tickets are not valid here.
From 2 November 2026 to 2 May 2027, bookings are required. Book online. DOC keeps no bunks for walk-ins, and if no availability shows for your dates the hut is full. Phone or visitor-centre bookings cost an extra NZ$10. Same-day online bookings are open until 8 pm if anything is left. Your booking is for a bunk, not a particular one.
Outside that window, from 1 May to 1 November, there are no bookings. You buy a hut ticket at the Aoraki/Mount Cook National Park Visitor Centre, which opens at 8:30 am, on the day you walk. Turning up at the hut without a ticket may mean walking back down.
Whatever the season, register your intentions at the visitor centre on the day you start. DOC says failing to sign in or out can start a formal search.
DOC splits the year like this:
DOC warns of “considerable avalanche danger” on the route from April to mid-November, and says avalanches can occur in any month because snow falls all year in the park. Check the New Zealand Avalanche Advisory before you go. From May to late October DOC also asks you to carry a disposable travel toilet from the visitor centre, because the hut toilet can be buried in snow.
There is no gear rental in the village, so bring everything with you. DOC’s list for an overnight stay includes a 3 to 4 season sleeping bag, a stove and fuel, a map, a head torch and a personal locator (PLB) to call for help.
The route begins on the Kea Point Track, either on Terrace Road by the visitor centre or at White Horse Hill car park at the end of Hooker Valley Road. Parking at White Horse Hill is NZ$2.50 per half hour or NZ$25 a day, card only, checked November 2026. An overnight stay counts as two days (NZ$50), so if you will park for several days DOC suggests an annual permit (NZ$60) may work out cheaper. If you sleep in the village, walking from Terrace Road avoids the charge. The Mount Cook accommodation guide lists places within walking distance.
Kea, New Zealand’s alpine parrot, live up here. DOC describes their habit of borrowing and dismantling things, so keep boots and food inside, and never feed them.
If the hut is booked out or the weather turns, two shorter walks follow the same line. Sealy Tarns is the first half of the route, 3 to 4 hours return. Kea Point is an hour from White Horse Hill. The flatter Hooker Valley Track starts from the same car park. For the whole park, see the Aoraki/Mount Cook guide.
The first Mueller Hut was built in 1914, and the present one is the fifth with the name. One of the earlier huts lasted only four months before a wet-snow avalanche swept it away. Sir Edmund Hillary opened the current hut in July 2003. It sits just below Mount Ollivier, which DOC says was the first peak Hillary climbed.
Yes, from 2 November 2026 to 2 May 2027. Book online with DOC. No bunks are held for walk-ins, and if no dates show online the hut is full. Same-day online bookings are possible until 8 pm if spaces remain. From 1 May to 1 November there is no booking: you buy a hut ticket at the Aoraki/Mount Cook visitor centre on the morning you walk.
Checked November 2026, an adult pays NZ$50 a night from 1 May to 30 September, NZ$55 on weekdays and NZ$57 at weekends from 1 October to 30 April, and NZ$60 or NZ$62 from 1 December to 29 February. Children aged 5 to 17 pay half, infants are free, and NZ Alpine Club members pay NZ$40. Backcountry Hut Passes are not accepted.
It is a big step up from the valley walks. DOC grades it an advanced tramping track: 1,000 m of climbing in 5.2 km, the first half on 2,200 steps to Sealy Tarns, then an unmaintained alpine route over rock and loose scree. In summer DOC says moderate tramping experience is enough if you take care. In winter you need mountaineering skills.
DOC's times add up to about 7 hours of walking, 4 hours up and 3 hours down, so a return trip in one day is possible for fit trampers. You still have to register your intentions at the visitor centre on the day you start, and you need an early start, settled weather and a plan to turn back at Sealy Tarns if conditions or your group are not right.
Only with mountaineering skills and gear. DOC warns of considerable avalanche danger from April to mid-November and says avalanches can happen in any month. From May to late October you need an ice axe, crampons, an avalanche transceiver, probe and shovel, and the experience to use them. There is no equipment rental in Aoraki/Mount Cook Village.