Waterfall Height
20 m (66 ft)
The Skjálfandafljót river drops 20 meters through a basalt-lined gorge into a deep pool.
Aldeyjarfoss: Basalt-Column Waterfall in North Iceland
A highland waterfall where white glacial water drops between dark basalt column walls
Location
North Iceland (Highlands)
Highland F-road access, Skjálfandafljót river
Quick Answer
Aldeyjarfoss drops between basalt columns on the Skjálfandafljót in North Iceland. The northern approach uses Route 842 followed by a short stretch of F26.
Aldeyjarfoss lies in the northern highlands, where the Skjálfandafljót river plunges 20 meters through a narrow gap in a basalt column amphitheater. The draw is the contrast: milky-white glacial water, carrying sediment from the Vatnajökull ice cap, falls into a dark pool surrounded by curved, twisted, and hexagonal basalt columns. The formations are unusually varied; some columns bend at sharp angles, others stand straight, and honeycomb patterns show in cross-section. The road approach needs its own check before you add the waterfall to a driving day.
Sources and page update
Updated: 2026-09-10
This guide is a travel-planning summary, not emergency guidance. Conditions in Iceland can change quickly; check official alerts, roads, and weather before driving, hiking, or booking around volatile conditions.
For sourcing standards and how to report an error, see the editorial policy.
Official sources to check
Road Access
F-road (4x4)
The northern approach follows Route 842 and continues onto F26.
Access Season
Late Jun – Sep
F-roads typically open late June and close by October, depending on conditions.
What to Expect
Color Contrast
The milky-white glacial water against jet-black basalt is the waterfall's defining feature, and the reason most people make the trip.
Varied Column Formations
Unlike the uniformly straight columns elsewhere, Aldeyjarfoss has columns that curve, twist, and bend in unusual directions, the result of complex cooling conditions.
Basalt Amphitheater
The waterfall drops into a deep natural amphitheater completely encircled by basalt columns.
Remote Highland Setting
The location in the northern highlands means far fewer visitors than the roadside waterfalls, and often no one else at all.
Same River as Goðafoss
Aldeyjarfoss is upstream from Goðafoss on the Skjálfandafljót river, so travelers with a 4x4 can combine the two.
Photography
White water, dark geometric stone, and often overcast highland skies make good conditions for landscape photography.
Getting There
From Route 1, follow Route 842 south through Bárðardalur, then continue along the northern end of F26 to the signed waterfall turnoff. Visit North Iceland describes this sequence explicitly: the Route 842 approach still uses F26. Check the road status and your vehicle permissions before leaving the main road.
Best Time to Visit
Aldeyjarfoss is only accessible when F-roads are open, typically from late June through September. July and August offer the most reliable road conditions and longest daylight. The glacial flow peaks in mid-summer with the meltwater, when the cascade is most powerful and the water whitest. Early morning or evening light sharpens the contrast between the white water and dark basalt. Overcast days, common in the highlands, often photograph well; they reduce harsh shadows and deepen the basalt's dark tones. Check weather forecasts for the highlands specifically, as conditions can differ significantly from lowland areas.
Route checked September 10, 2026 against Visit North Iceland’s waterfall directions. Check current road conditions before departure.
Planning help
Aldeyjarfoss FAQs
Quick answers with safety notes where it matters.
Do I need a 4x4 to reach Aldeyjarfoss?
The northern approach follows Route 842 and then a short section of F26. Route 842 is not a separate bypass avoiding the F-road. Confirm that your vehicle is permitted on the open route before driving it.
When is Aldeyjarfoss accessible?
Do not use a fixed calendar opening date. Check current road status before departure and confirm the permitted route with your rental provider; access depends on conditions.
What makes Aldeyjarfoss unique among Iceland's waterfalls?
Aldeyjarfoss is known for the contrast between the white glacial water of the Skjálfandafljót river and the dark basalt columns surrounding it. The falls drop 20 meters into a deep pool encircled by curved and twisted basalt columns in unusual formations, including some that appear to have been bent during cooling.
Can I visit Aldeyjarfoss and Goðafoss in the same trip?
Yes, Aldeyjarfoss and Goðafoss are on the same river (Skjálfandafljót) and can be combined. Goðafoss is easily accessible off Route 1, while Aldeyjarfoss requires a further drive south into the highlands. Many visitors see Goðafoss first, then continue to Aldeyjarfoss if they have a 4x4 vehicle and the road is open.
Country reference: Iceland statistics.