MarathonTrail🇦🇶 Union Glacier, Antarctica

Antarctic Ice Marathon

Sunday, 13 December 2026In 51 days

The world's southernmost marathon, run on groomed ice and snow near the Union Glacier camp in the interior of Antarctica: four laps of 10.55 km, usually between -10 and -20°C. Entry includes the flights from Punta Arenas, Chile, and tented accommodation; places are limited by aircraft capacity.

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Facts checked 23 Oct 2026 against icemarathon.com, icemarathon.com, marathon-index.com.

Elevation gain

150 m

Rolling · ↓ 150 m

Start altitude

768 m

above sea level, from terrain data

Temp at start

-11°C

Peaks around -10°C

Entry fee

≈ $22,500

Open entry

Finishers

—

typical year

Course

Loop

Cut-off: check site

Getting thereFly into USH (Ushuaia), about 2823 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Rolling: about 150 m of climbing and 150 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

-11°C

Peak during race

-10°C

Humidity

65%

Chance of rain

19%

Wind

11 km/h

13 December in past years

Historical averages for 13 December ±3 days, 2016–2025, from 08:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

Finish times by age group

No data yet. We’re collecting age-group results race by race.

Runner reviews

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

Guides for this race

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Organizing this race? Add it to your website

Show your runners the course facts and race-day weather. Paste this code into your site; it displays the badge below and links to this page. It updates automatically when the race details change.

<a href="https://irun42.com/race/antarctic-ice" title="Antarctic Ice Marathon on iRun42"><img src="https://irun42.com/badge/antarctic-ice.svg" width="300" height="120" alt="Antarctic Ice Marathon: course, elevation and race-day weather on iRun42" /></a>

Plan your trip

Searches are set for Union Glacier and the race weekend.

Hotels near the start lineClosest first · 2026-12-12 → 2026-12-14Booking.com Flights to Union GlacierArrive 2026-12-11, fly home 2026-12-15Google Flights Things to do in Union GlacierTours and attractions in Antarctica for the days around the raceKlook Mobile data in AntarcticaAn eSIM for maps, tracking apps and results on race dayAiralo Airport transfer from USHUshuaia airport is about 2823 km from the startKiwitaxi Rent a carFor getting to the start and the trailheadsEconomybookings

Gear for this race

Trail running shoesGrip for the unpaved sections Hydration vestCarry water and food between aid stations Running gloves & thermal layerStarts around -11°C Energy gelsFuel for race day

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Around the same time

All races in December 2026 →