388 hikes walked and documented
Menu

Grænihryggur Hike

By François · updated in June 202506/2025My rating

Key facts about the hike

Difficulty
Hard Hikes are rated from very easy to very hard: my difficulty scale
Duration
6h30 Estimated time, short breaks included (photos, water, snacks), picnic not included: how it is calculated
Distance
15.7km
out and back
Elevation gain
910m
Type of route
Out and back
Maximum altitude
815 m
Vertiginous Five levels, depending on how exposed the route is: the levels in detail
Moderately
Marked
Yes
Popularity
Low
Region
Highlands
Start point
63.98522, -18.96734
Activity
Hiking

Hike overview

The hike to Grænihryggur (Green Ridge) is one of the most beautiful in the Fjallabak Nature Reserve, offering breathtaking views and spectacular colors. Yet, it remains one of Iceland's best-kept secrets, with few hikers, even during the high season! It is one of the few hikes where you will encounter more Icelanders than tourists!

While the beginning of the hike may seem relatively conventional, what follows will take your breath away. The main objective is the Grænihryggur ridge, made of cyan green rhyolite, but every turn along the way holds surprises. You won't regret choosing this hike!

Map and elevation profile of the hike

Grænihryggur Hike

Difficulties of the hike

The trail is well-marked, but the effort required shouldn't be underestimated. Its level of difficulty is mainly due to the numerous steep ascents and descents, which are sometimes slippery. Additionally, you will need to ford the Jökulgilskvísl glacial river, which may require walking through icy water depending on the water level.

What you'll love

  • The Grænihryggur ridge itself, a rhyolite formation with otherworldly green and cyan colors.
  • Breathtaking views of the Jökulgil canyon and the multicolored rhyolite mountains characteristic of the Landmannalaugar region, creating a natural kaleidoscope of colors.
  • The feeling of adventure and total solitude in one of Iceland's most unspoiled and wild landscapes.

Practical information

Access

F-roads are only open in the summer, and a 4WD vehicle is required. There are three options for reaching the starting point:

  • The F208 road from the north is the easiest and does not require crossing any rivers.
  • The F225 road is more scenic, but it requires crossing several shallow rivers.
  • The F208 road from the south crosses several medium-depth rivers.
Further reading

See the section on driving in the Highlands for more information, particularly on crossing rivers.

Rocky trail, less interesting at first
Rocky trail, less interesting at first
Path to Grænihryggur
Path to Grænihryggur
From the pass, the view becomes impressive
From the pass, the view becomes impressive
View towards Landmannalaugar
View towards Landmannalaugar
A moment of contemplation
A moment of contemplation
Impressive colors
Impressive colors
Impressive colors
Impressive colors
Canyon
Canyon
Trail to Grænihryggur
Trail to Grænihryggur
Trail to Grænihryggur
Trail to Grænihryggur
Each direction offers a different landscape
Each direction offers a different landscape
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Descent to Grænihryggur
Descent to Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Grænihryggur
Glacier
Glacier
Lake at the start of the hike
Lake at the start of the hike
Lake at the start of the hike
Lake at the start of the hike

More hikes to do in Iceland

Nearby hikes

Highlands

Bláhnúkur

Easy2 h 30 · 6.3 km · 400 m D+

Highlands

Brennisteinsalda

Easy2 h 45 · 7.5 km · 350 m D+

Highlands

Laugahraun

Easy1 h 30 · 4.7 km · 160 m D+

Highlands

Skalli

Hard6 h 30 · 17.7 km · 960 m D+

Highlands

Suðurnámur

Moderate3 h 30 · 10.1 km · 510 m D+

Printed from www.horizonrando.fr/en/iceland/graenihryggur/