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.
The 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.
Trail Wisdom
Expect river crossings
The trail includes a boulder-and-log crossing; waterproof boots and poles increase safety and comfort.
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
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
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
What to Bring
Waterproof hiking bootsEssential
Keeps feet dry and supports ankles across rocky, wet terrain and river crossings.
Trekking polesEssential
Improves balance on boulder fields and makes the log crossing less precarious.
Rain shell (waterproof jacket)Essential
Iceland 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
How long is the hike to Glymur?
Expect about 3–4 hours round-trip covering roughly 6–8 km with 300–400 meters of elevation gain, depending on detours and pace.
Is the trail to Glymur suitable for beginners?
Fit beginners can do it in summer with caution—there are exposed sections and a river crossing so take your time and consider a guide.
Can you visit Glymur year-round?
Yes, but winter conditions make the route technical and potentially hazardous; proper gear and experience or a guided trip are essential.
Are dogs allowed on the trail?
Dogs are generally allowed but must be controlled near cliff edges and wildlife; check local seasonal restrictions before you go.
How do I get to Glymur from Reykjavík?
A 45–60 minute drive north along Route 1 and local roads brings you to the trailhead in Hvalfjörður; private tours provide transport if preferred.
Is there a fee or permit to hike Glymur?
No permit is required for day hiking, but parking may be limited—arrive early in peak season.
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
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
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
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
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
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.