How tall is Gluggafoss?

Gluggafoss has a total height of 44 meters (144 feet) across multiple drops. The water falls through natural 'windows' (holes) carved into the rock face over centuries.

Why is it called Gluggafoss (Window Falls)?

The name Gluggafoss means 'Window Falls' in Icelandic. The river has carved natural arches and holes through the cliff face, and the water flows through these 'windows' on its way down.

Is Gluggafoss also known as Merkjárfoss?

Yes, Gluggafoss is also known as Merkjárfoss, named after the Merkjá river that feeds it. Both names are commonly used.

Is Gluggafoss free to visit?

Yes, Gluggafoss is free to visit. There is no entrance fee, and the waterfall is accessible via a short walk from the road.

How much time do I need at Gluggafoss?

Plan about 30–45 minutes for the visit, including walking to the various viewpoints to see the window formations and the main cascade.

When is the best time to visit Gluggafoss?

Gluggafoss is accessible year-round. Spring and summer have the strongest water flow from snowmelt. The window formations are visible in any season.

Gluggafoss (Window Falls)

'Window Falls': a 44-meter cascade where water flows through natural arches and holes carved into the cliff face, near Eyjafjallajökull volcano.

Last reviewed March 3, 2026By the Iceland.org travel deskEditorial policy

Region

South Iceland

Unique window formations. Easy access year-round.

'Window Falls': water falls through natural 'windows' (holes) in the rock face. Located in the Fljótshlíð area near the Eyjafjallajökull volcano. The river has carved arches through the cliff over centuries.

Sources and last reviewed

Last reviewed: 2026-03-03

This page is for trip planning, not emergency guidance. The area near Eyjafjallajökull can be affected by volcanic activity, so check official alerts before visiting.

Pages are reviewed for practical usefulness, source quality, and volatile claims before publication.

Official sources to check

Best for

Window rock formations

Natural arches and holes carved by centuries of water flow.

Access

Easy

Short walk from the road in the Fljótshlíð area.

Pro tip

Explore the arches

Walk around to see the windows from different angles.

What to Expect at Gluggafoss

Water cascading through natural window-like holes in rock
Multiple drops totaling 44 meters
Rock arches and holes carved over centuries

Nearby Attractions to Gluggafoss

Eyjafjallajökull volcano and glacier
Seljalandsfoss (walk-behind waterfall)
Þórsmörk valley (hiking destination)

How to Get to Gluggafoss

Located in the Fljótshlíð area of South Iceland
Turn off Route 1 onto Route 261 toward Fljótshlíð
About 120 km east of Reykjavik
Short walk from the roadside to the waterfall

Best Time to Visit Gluggafoss

Year-round access via paved roads
Spring and summer for strongest water flow from snowmelt
The window formations are visible in any season
Less crowded than nearby Seljalandsfoss and Skogafoss
Good light for photography in morning and evening

Planning help

Gluggafoss FAQs

Quick answers with safety notes where it matters.

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