Lonely Planet IcelandLonely Planet
Guidebook
Lonely Planet Iceland
Lonely Planet · 2026
Newest Lonely Planet edition: Ring Road planning, road and weather advice, and practical detail for every major Icelandic waterfall.
Iceland · Kjalarnes
Tröllafoss
Tröllafoss is a waterfall in Iceland.
Essentials guide
Facts from Wikidata, compiled September 2026; season and access are our estimate, not a visit report. How we build these pages.
Tröllafoss drops over a series of steps. It is a cascade-type fall, and the nearest base for a visit is Reykjavik, Iceland. Access to the main viewpoint is rated moderate.
As a cascade waterfall, water tumbles down a series of rock steps rather than falling free.
What you can do here
A walk-in-and-look waterfall
No commercial adventures run at Tröllafoss itself — the experience is the approach and the view. Guided day trips from Reykjavik are the easiest way to combine it with the area around it.
Also good forHikingPhotography
When to go
Snowmelt feeds the falls from late May; June to August is the short, bright season, and many access roads close in winter.
Getting there
- Base town Reykjavik, Iceland
- Country Iceland
- Region Kjalarnes, Nordics & Baltics, Europe
- Access Moderate — a real walk — expect stairs, uneven ground or an hour on the trail
How it compares
This waterfall
Tröllafoss
Iceland
Height—Width—
Most similar
Langfoss
Norway
Height612 mWidth—
Also a cascade waterfall and in Norway
Largest curtain
Victoria Falls
Zimbabwe · Zambia
Height108 mWidth1,708 m
Largest single sheet of falling water
Tallest on earth
Angel Falls
Venezuela
Height979 mWidth—
Widest on earth
Khone Phapheng Falls
Laos
Height21 mWidth10,783 m
Measured across the whole multi-channel system
108 m
330 m
612 m
979 m
Victoria FallsEiffel TowerLangfossAngel Falls
Khone Phapheng Falls
10,783 m
Victoria Falls
1,708 m
We don't have a reliable crest width for Tröllafoss yet, so it is left off the width chart. Tallest · widest lists.
Watch and read
Books worth packing
The Rough Guide to IcelandRough Guides
Guidebook
The Rough Guide to Iceland
Rough Guides · 2025
Current Rough Guide with region-by-region coverage of the south coast, Mývatn area, Snæfellsnes and Vatnajökull.
Guidebook
DK Eyewitness Iceland
DK Eyewitness · 2024
Map-heavy illustrated guide, handy for picturing the Golden Circle and south-coast falls before you drive them.
Iceland (Classic Geology in Europe)Thor Thordarson & Ármann…
Natural history
Iceland (Classic Geology in Europe)
Thor Thordarson & Ármann Höskuldsson · 2022
Field geology of Iceland's volcanic landscapes, explaining the lava, basalt and canyons that shape falls like Svartifoss and Dettifoss.
On the map
64.2103, -21.5357
Quick answers
Where is Tröllafoss?
Tröllafoss is in Iceland (Kjalarnes). The nearest base is Reykjavik, Iceland. Its coordinates are 64.2103, -21.5357.
When is the best time to visit Tröllafoss?
Peak flow is June to August. Snowmelt feeds the falls from late May; June to August is the short, bright season, and many access roads close in winter.
What can you do at Tröllafoss?
Beyond the viewpoints: hiking and photography. Access to the main viewpoint is rated moderate — a real walk — expect stairs, uneven ground or an hour on the trail.
How do you get to Tröllafoss?
The usual base is Reykjavik, Iceland. A real walk — expect stairs, uneven ground or an hour on the trail from there.
Nearby
Closest to Tröllafoss
Álafoss
Iceland · 8 km away
Álafoss is a waterfall on the river Varmá in Mosfellsbær, Iceland.
Öxarárfoss
Iceland · 20 km away
Öxarárfoss is a waterfall in Þingvellir National Park, Iceland. It flows from the river Öxará over the…
Swimming
Glymur
Iceland · 190 m · 30 km away
Glymur is a waterfall in Hvalfjarðarsveit, Vesturland, Iceland. It is the second-tallest in the country with…
Brúarfoss
Iceland · 50 km away
Brúarfoss is a waterfall in Iceland.