Expect river crossings
The trail includes a boulder-and-log crossing; waterproof boots and poles increase safety and comfort.
Rumble in the Canyon: Hiking to Glymur, Iceland’s Roaring Waterfall
A short, rugged hike from Reykjavík that pays off with a dramatic canyon view—best by boot or by air.
Reykjavík, Capital Region•By Robert Eric Crews•Land Adventures,Aerial Adventures,Motorized Land•July•summer
Continue ReadingThe trail begins in a field of peat and moss that seems to inhale the sky. You shoulder your pack, tighten the gaiters, and follow a narrow worn line toward a brim of basalt where the land drops away into a green wound: a canyon braided with river and mist. From the first bend you can hear it—low at first, then gathering—Glymur. The name means "the rumble," and on a good day the fall lives up to it: water throwing itself nearly 200 meters into a narrow gorge, sending spray and a palpable sense of motion up the valley like a challenge.
Duration3–4 hours
Group SizeSmall Groups
LanguagesEnglish
Rating5.0 (18 reviews)
Trail Wisdom
Trail Wisdom
Start early
Morning light and fewer hikers make for clearer photos and steadier footing on narrow sections.
Wear good traction
On wet rock and summer mud, aggressive tread prevents slips; in winter bring crampons.
Follow the marked trail
Stick to established paths to protect fragile moss and avoid eroded shortcuts.
Local Knowledge
Local Knowledge
Hidden Gems
- A lesser-used viewpoint further along the canyon rim with sweeping fjord vistas
- Small roadside hot springs and pools tucked into Hvalfjörður's coves for a post-hike soak
Wildlife
Harbor seals in the fjord, Various seabirds and waders on the shoreline
Conservation Note
Stay on established trails to protect delicate moss and prevent erosion; pack out all waste and avoid altering river crossings or banks.
Hvalfjörður—"Whale Fjord"—was once a center for whaling and later a sheltered Allied naval base during WWII; the area retains quiet coastal settlements.
Seasonal Guide
Seasonal Guide
spring
Best for:Powerful water flow, Wildflower displays
Challenges:High water levels, Mud and slippery rocks
Snowmelt swells the falls and river, creating dramatic flow—expect wet, muddy approaches and stronger currents at crossings.
summer
Best for:Stable trail conditions, Long daylight, Birdwatching
Challenges:Midges on calm days, Bigger crowds on sunny weekends
Warmest and most reliable season for hiking; aim for early starts to avoid crowds and soft midday light for photos.
fall
Best for:Autumn color accents, Fewer visitors
Challenges:Unpredictable weather, Shortening daylight
Crisp air and quieter trails make fall appealing, but be ready for wind and rapid temperature shifts.
winter
Best for:Snowy canyon scenes, Northern lights if timing aligns
Challenges:Ice, high winds, and avalanche risk in places; requires crampons/axe
Winter makes the route technical—only attempt with proper gear and experience or a qualified guide.
Photographer's Notes
Photographer's Notes
Bring a wide-angle lens to capture the canyon’s depth and a neutral density filter for long exposures of the fall; shoot from the higher rim at golden hour for layered light and use a telephoto to compress the waterfall against the canyon walls.
What to Bring
What to Bring
Waterproof hiking boots
EssentialKeeps feet dry and supports ankles across rocky, wet terrain and river crossings.
Trekking poles
EssentialImproves balance on boulder fields and makes the log crossing less precarious.
Rain shell (waterproof jacket)
EssentialIceland weather changes fast; a breathable shell keeps you warm and dry during sudden showers.
Microspikes or crampons
Necessary if attempting the hike in icy winter conditions to prevent slips on frozen sections.
Common Questions
Common Questions
What to Pack
What to Pack
Waterproof boots (river crossings), rain shell (fast weather changes), trekking poles (balance on uneven terrain), snacks + water (3–4 hour hike)
Did You Know
Did You Know
Glymur was long considered Iceland’s tallest waterfall at roughly 198 meters until the discovery of Morsárfoss in 2007, but its dramatic canyon setting keeps it a standout destination.
Quick Travel Tips
Quick Travel Tips
1) Start early to avoid crowds; 2) Carry a waterproof stuff sack for electronics; 3) Check recent trail reports for river levels; 4) Consider a guide in shoulder seasons.
Local Flavor
Local Flavor
After the hike, sample local Icelandic lamb and skyr at cafés in small coastal settlements or head back to Reykjavík for a geothermal pool soak—a communal way locals unwind and swap road-trip tips.
Logistics Snapshot
Logistics Snapshot
Trail length~6–8 km RT • Elevation gain: ~300–400 m • Time: 3–4 hours • Difficulty: moderate • Nearest city: Reykjavík (45–60 min drive) • Seasonal hazards: high spring flows, winter ice.
Sustainability Note
Sustainability Note
Protect Iceland’s fragile moss and soils by staying on paths, avoid building new crossing points, and carry out all waste; consider guided tours that practice low-impact travel.
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