Plizio Visual Lab
Glymur
Glymur was long considered the highest waterfall in Iceland until the discovery of Morsárfoss at the Vatnajökull glacier in 2011. With a total drop of 198 meters, it plunges into a narrow, deep canyon located at the inner end of Hvalfjörður ('Whale Fjord'). The waterfall is fed by the Botnsá river, which originates from Lake Hvalvatn, a body of water formed when an ancient lava flow from the Hvalfell volcano blocked the valley. The hike to Glymur is widely regarded as one of the most rewarding day trips from Reykjavík, though it is moderately challenging as it involves passing through a cave and crossing a river over a log bridge. During the summer, the canyon walls are alive with nesting fulmars, adding a dynamic biological element to the stark geological landscape. Because the falls are hidden deep within the gorge and are not visible from the main road, they offer a sense of seclusion and raw wilderness that is highly prized by hikers and photographers alike.
- Location: Iceland
- Top sights: Hvalfell · Glymur
- Nearby: Laugarvatn (32 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -4 | -4 | -3 | 1 | 4 | 9 | 10 | 9 | 6 | 1 | -2 | -3 |
| Rain mm | 160 | 148 | 141 | 111 | 87 | 77 | 92 | 101 | 155 | 123 | 129 | 159 |
📋 Practical info
Geography
Facts
- Glymur features a total vertical drop of 198 meters.
- It held the title of Iceland's tallest waterfall until 2011.
- The waterfall is located at the innermost head of the Hvalfjörður fjord.
- The river Botnsá flows from Lake Hvalvatn, which is 160 meters deep.
- The hiking trail famously passes through the small cave called Þvottahellir.
- The steep canyon walls serve as a major nesting site for fulmars in summer.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Glymur (2)
Sights nearby
Frequently asked questions
Do you have to cross a river?
How long does the entire hike take?
Is the hike safe in winter?
Is Glymur the highest waterfall in Iceland?
Are there parking fees?
Glymur: where is it located?
Glymur: what is there to see?
Glymur: when is the best time to visit?
Glymur: why is it worth visiting?




















