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Iceland

Also known as Ок

Ок

Elevation
1,170 m
Prominence
562 m
Difficulty
2/10
Hike
Best Season
Jul–Aug
Routes
1

Routes

1
3D Preview
SACT2HikeNormal route

Húsafell's signposted route no. 10: up the west side of the Bæjargil canyon behind Húsafell to Drangsteinabrún, past a group of small ponds, then a long, steady climb over the stony basalt shield to the summit crater of Ok, where the dead glacier Okjökull has left a lake. About 24 km and 1,000 m return; 6–8 hours.

About 92% of this line is approximate (no mapped trail; drawn from the terrain). Check it against a map before relying on it.

Why? 5 check notes
  • 92% approximate geometry
  • last routed vertex 63 m from the summit
  • low confidence 0.44
  • Húsafell → Ok memorial plaque: dem (unreachable, 12.1 km)
  • unresolved waypoints: Bæjargil, Drangsteinabrún

Elevation Profile

approximate line
02505007501,0001,2500 km2.557.51012.5Ok
Distance
13.3 km
one way
Ascent
+1,067 m
start → summit
High Point
1,173 m
Time Up
5h 17m
DIN 33466
Time Down
4h 26m
DIN 33466 · same way back

Start at Húsafell (hotel and car park, about 130 m). Walk up the western side of the Bæjargil canyon, which has a trail register at a viewpoint and sculptures by the Húsafell artist Páll Guðmundsson along the lower part. At the top of the canyon is the escarpment Drangsteinabrún; a short way south of it lie some small ponds. Pass east of them and head straight for the highest point of Ok. Above the ponds the route climbs the broad, gently angled shield on loose stones and gravel, without a constructed path. The summit area is a shallow crater (Blávatn) where the glacier Okjökull lay until it was declared dead in 2014; the 2019 memorial plaque stands on a rock at 1,114 m on the edge of the old ice. From the top the view takes in Langjökull, Eiríksjökull, Þórisjökull and the shield of Skjaldbreiður. Return the same way. The shield is featureless in cloud and the summit is very exposed to wind: carry a GPS track and turn back in fog. A shorter ascent from the Kaldidalur road (route 550) on the east side is also popular; see the notes.

Start

Húsafell136 m

  • None to Húsafell; seasonal tour buses only (not verified).
  • Parking at the trailhead

Stages

DayStagekmm ascentm descentTime
1Húsafell → Ok13.31,067345h 17m

Waypoints

  1. Parking:
    Húsafell136 m
  2. Feature:
    Ok memorial plaque1,109 m

    'A letter to the future' (2019) on a rock at the former edge of Okjökull

  3. Summit:
    Ok1,170 m

Key Passages

  • West side of Bæjargil
  • Ponds south of Drangsteinabrún
  • Summit crater and memorial plaque

Equipment

0/5 packed
Technical
Footwear
Clothing
Navigation
Other

Downloads

Route confidence 44%

Overview

A broad basalt shield volcano (about 1,170–1,198 m) between Húsafell and Kaldidalur in west Iceland, whose small ice cap Okjökull became the first Icelandic glacier declared dead, in 2014. A long, easy-angled stony walk leads to its summit crater lake and the 2019 memorial plaque.

Ok is a grey-basalt shield volcano in the West Volcanic Zone, rising west of Langjökull with the Kaldidalur road on its east side and Húsafell below its north-west flank. Like its neighbour Skjaldbreiður it is a broad, gently sloping dome with a summit crater, where a small lake, Blávatn, has formed in place of the ice.

The glacier Okjökull covered about 15–16 km² around 1900 and only 3 km² by 1978. In 2014 the glaciologist Oddur Sigurðsson of the Icelandic Meteorological Office found that it no longer moved and declared it dead. In August 2019 about 100 people, including Iceland's prime minister, climbed for two hours to the summit to unveil a plaque by the writer Andri Snær Magnason, 'A letter to the future', which made the mountain a symbol of climate change.

The ascent is long but technically easy: either about 24 km and 1,000 m return from Húsafell up the Bæjargil canyon, or a shorter walk from the Kaldidalur road. The terrain is loose stones and gravel, and the summit is exposed and often in cloud. From the top there are views over Langjökull, Eiríksjökull, Þórisjökull and Skjaldbreiður.

Climbing Notes

Fitness for a 6–8 hour walk from Húsafell (or a shorter half-day from the Kaldidalur road) is all that is needed technically. Navigation is the main issue: the shield is broad and featureless, so carry a GPS track and the plaque coordinates, and do not go up in fog or strong wind. Wear boots for the loose stony ground, carry full waterproofs and warm layers, and take enough water. Snow lingers on the upper slopes into early summer. Check road 550 status on umferdin.is if you plan to start from Kaldidalur; some rental companies do not allow 2WD cars on it.

History

Okjökull was among Iceland's smallest glaciers. Oddur Sigurðsson declared it dead in 2014, the first Icelandic glacier to lose its status. Rice University anthropologists Cymene Howe and Dominic Boyer made the documentary 'Not Ok' (2018) and proposed the memorial, which was unveiled in August 2019 with Prime Minister Katrín Jakobsdóttir and Mary Robinson present. The plaque, in Icelandic and English, records '415 ppm CO2' and ends: 'This monument is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it.'


Season

Best Jul–Aug
  1. January: Not advisable
  2. February: Not advisable
  3. March: Not advisable
  4. April: Possible
  5. May: Possible
  6. June: Good
  7. July: Best (best window)
  8. August: Best (best window)
  9. September: Good
  10. October: Possible
  11. November: Not advisable
  12. December: Not advisable
Jan
Winter; Kaldidalur road closed; short days
Apr
Snow-covered; ski ascent possible from Húsafell
May
Snow on the upper shield; Kaldidalur road usually opens late May or June
Jun
Long days; snow patches high up
Jul
Best conditions
Sep
Shorter days; first snow possible
Oct
Kaldidalur road closes mid to late October

Access & Permits

Rules
  • Off-road driving is illegal in Iceland; park only at existing pull-outs on the Kaldidalur road
  • Some car-rental companies prohibit 2WD cars on road 550 (Kaldidalur)
Getting There

Húsafell (settlement); Reykholt or Borgarnes for services

Keflavík International Airport (KEF); Reykjavík Airport (RKV)

  • Car to Húsafell: Route 518 from Reykholt; start at Hótel Húsafell for the Bæjargil route
  • Car to Kaldidalur: road 550 (formerly F550) between Húsafell and Þingvellir, open roughly late May/June to mid or late October; start where the summit is closest to the road
  • No regular public transport

Hazards

  • Weather
  • Remoteness
Researched from 6 sourcesConfidence69%UnreviewedUpdated 8 Oct 2026
Sources & Caveats
  • merged with Wikidata/OSM names
  • Natural Earth 10m point-in-polygon + 300 m border buffer; Wikidata P17 countries whose border is within 5 km
  • Elevation: the Húsafell trail map gives 1,170 m (as the skeleton); Wikipedia gives 1,198 m from the National Land Survey, probably including former ice. EU-DEM shows about 1,160 m.; The memorial ceremony is dated 18 August 2019 in most reports; the Much Better Adventures article says 'Monday 19 August'. The plaque itself is dated only 'August 2019'.; The Kaldidalur ascent is described only from search excerpts (AllTrails, Atlas Iceland) and is not documented as a route.; Road 550 opening dates come from search excerpts of driving guides; check umferdin.is.
  • normalizeGrade of the easiest researched route
  • Wikidata states 1198 m
  • summit-corrected (raw GLO-30 563 m)
  • curated regional name (config/range_regions.yaml)
  • 8% OSM trail graph, 0% short gaps between OSM fragments, 91% DEM least-cost, 0% straight (approx)
  • elevation from copernicus_glo30