Is Glymur Iceland's Second Tallest Waterfall? The Truth
🕐 7 min read | 🌍 Natural Wonders
🔒 Key Takeaways
- Glymur reaches 196 meters, making it Iceland's second or third tallest depending on measurement methods used
- The waterfall's true height remains debated because water often flows in multiple cascades rather than one straight drop
- Glymur is fed by the Botnsá River and plunges into a narrow canyon creating a breathtaking misty spectacle
- Fewer than 5,000 people annually hike to Glymur compared to Iceland's most famous falls, keeping it relatively pristine
Is Glymur really Iceland's second tallest waterfall, or is this title a geographical mystery? At 196 meters of pure vertical drama, this hidden cascade plunges into one of Iceland's most remote canyons—yet its true height ranking sparks debate among scientists. Uncover why Glymur Iceland second tallest remains one of nature's most contested claims.
The Height Mystery: Why Is Glymur's Ranking Disputed?
Glymur officially measures 196 meters (643 feet), but here's where the mystery deepens—geographers can't agree if this is truly Iceland's second tallest. The culprit? Water doesn't always fall in one clean vertical line. Instead, Glymur cascades and bounces off rock faces in sections, making it genuinely difficult to measure where the 'real' waterfall ends. Iceland's Morsárfoss (228m) is definitively taller, but determining whether Glymur ranks second or third depends entirely on how scientists count fragmented falls. This measurement ambiguity makes Glymur delightfully controversial in the world of hydrography.
Journey Into the Canyon: Glymur's Physical Formation
Carved into Iceland's northwestern landscape, Glymur plummets into a narrow, U-shaped canyon surrounded by towering basalt cliffs that rise another 100+ meters above the waterfall. The canyon walls create an amphitheater of stone, amplifying the roar of cascading water and generating clouds of mist that perpetually drift upward. Geologically, this canyon was carved over millennia by glacial meltwater during Iceland's post-ice age period. The dramatic rock striations visible on the cliff faces tell the story of Iceland's violent geological past—repeated freeze-thaw cycles and volcanic activity reshaped this landscape. Standing in the canyon, you're witnessing raw erosional power, where soft basalt columns surrendered to relentless water pressure over tens of thousands of years.
🤔 Did You Know?
Glymur's exact ranking as Iceland's second tallest waterfall is hotly debated by geographers because the water splits mid-fall, making measurement genuinely controversial.
Botnsá River: The Force Behind the Fall
The Botnsá River, fed by snowmelt and groundwater from Iceland's interior highlands, is the engine driving Glymur's spectacular plunge. This river system originates in a region receiving over 2 meters of precipitation annually, making it one of Iceland's wettest zones. The river's volumetric flow increases dramatically during spring snowmelt (April-June) and after heavy autumn storms, transforming Glymur into a thundering torrent that can be heard kilometers away. During summer and fall, flow reduces but remains visually stunning. The Botnsá's cold, glacier-fed waters maintain temperatures near 4°C year-round, creating an ecosystem of hardy arctic plants and moss species uniquely adapted to permanent spray and shadow.
Hiking to Glymur: What Awaits You
The trek to Glymur demands respect—the 3.5-kilometer round-trip hike traverses exposed terrain with no marked official trail, making navigation crucial. Most hikers take 2-3 hours round-trip, depending on fitness and caution levels. The path winds through birch forests and open moorland before ascending steep slopes near the canyon. A thrilling rope-assisted scramble down into the canyon's interior is required to reach the waterfall's base, adding both adventure and technical challenge. Erosion has made some sections muddy and treacherous, especially after rain. The final approach involves crossing the Botnsá River itself—in high-water periods (May-July), this becomes genuinely dangerous, and the Icelandic authorities sometimes warn against attempting it. Approximately 4,000-5,000 visitors annually undertake this journey, far fewer than Iceland's most famous falls.
Comparing Iceland's Tallest Waterfalls
Iceland boasts several contenders for the title of tallest waterfall, creating genuine scientific debate. Morsárfoss (228 meters) holds the undisputed crown, plunging from a glacier-fed stream into a remote valley in southeastern Iceland. Skaftafell's Svartifoss (64 meters) is far shorter but visually dramatic with its dark basalt columns framing the falls. Dettifoss in the north (45 meters) is Iceland's most powerful waterfall by volumetric flow, despite lower height. Glymur's 196-meter claim often ranks it second, but some hydrographers argue that Barnaness (180m) or other fragmented falls complicate rankings. The distinction matters less for beauty than for the specific definition scientists use: some count only uninterrupted vertical drops, while others include total elevation loss across cascaded sections. This ambiguity makes Glymur's ranking genuinely uncertain.
The Seasonal Transformation of Glymur
Glymur undergoes dramatic seasonal metamorphosis that affects both its appearance and accessibility. Winter (December-February) sees the waterfall surrounded by ice formations and frozen spray, creating surreal crystalline sculptures that coat the canyon walls in layers of rime ice. By late spring, snowmelt from the highlands gorges Botnsá with water, and Glymur roars with maximum force—visibility drops as mist rises 30+ meters above the canyon. Summer brings milder flow but clearer viewing conditions and safer hiking. Autumn storms (September-October) can trigger sudden increases in water volume within hours, making the river crossing suddenly dangerous. The waterfall's color shifts seasonally too: milky gray during glacial melt, increasingly clear by late summer, and sometimes amber-tinted after peat-rich rainfall. Each season reveals different geological details carved into the canyon walls.
Final Thoughts
Glymur Iceland's second tallest waterfall claim remains beautifully contested—a reminder that nature resists neat categorization. Whether you're chasing Iceland's definitive waterfall rankings or simply seeking a pristine wilderness experience, Glymur delivers both mystery and majesty. Ready to dispute the rankings yourself? Plan your journey to this hidden cascade and witness why Icelanders themselves can't agree on which numbers tell the true story.
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Frequently Asked Questions
Is Glymur Iceland's second tallest waterfall?
Glymur measures 196 meters, making it Iceland's second or third tallest depending on how waterfalls are measured. Morsárfoss (228m) is definitively taller, but Glymur's fragmented cascade structure creates genuine measurement ambiguity among geographers. The ranking depends on whether scientists count uninterrupted vertical drops only or total elevation loss.
How tall is Glymur waterfall in meters?
Glymur plunges 196 meters (643 feet) into its canyon, though this measurement remains debated because the water doesn't fall in one continuous straight line. Multiple cascading sections and splashing water make precise measurement genuinely difficult.
Is Glymur waterfall worth visiting?
Absolutely. With only 4,000-5,000 visitors annually, Glymur remains remote and pristine compared to Iceland's famous falls. The combination of towering cliffs, dramatic canyon geology, and rope-assisted scrambles makes it a uniquely adventurous Icelandic experience worth the challenging hike.
How long does it take to hike to Glymur?
The round-trip hike typically takes 2-3 hours, covering 3.5 kilometers of unmaintained terrain. The time varies based on fitness level, weather conditions, and caution near the steep canyon descent and river crossing.
When is the best time to visit Glymur?
Late June through August offers the safest hiking conditions with minimal snow and manageable river flow. However, May-July brings maximum waterfall flow and volume. Avoid winter and early spring due to avalanche risk and dangerous river crossings.
📚 Further Reading & Research Sources
The following journals and institutions publish peer-reviewed research on the topics covered in this article:
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Imagery sourced from Icelandic tourism databases and geological survey archives; Glymur canyon photography by adventure trekkers and Icelandic nature documentarians
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