Iceland sits on top of more glacial ice than any country in Europe outside of Russia. About 11% of the island is covered in glaciers — ancient ice sheets that have been building and compressing for thousands of years. Hiking on them is one of the most alien and quietly stunning experiences Iceland offers.
It’s also an environment with genuine hazards. This guide gives you a clear-eyed look at what glacier hiking involves, what proper safety looks like, and how to make sure your day on the ice is memorable for the right reasons.
Iceland’s Main Glaciers
Iceland has around 269 named glaciers. The ones most relevant for tourism:
Vatnajökull — Europe’s largest glacier by volume, covering roughly 8% of Iceland. It sits over several active volcanoes, which makes it geologically fascinating and creates the ice caves formed by geothermal activity. Most glacier hikes and ice cave tours in southeast Iceland are on Vatnajökull’s outlet glaciers.
Snæfellsjökull — The glacier that sits on top of the Snæfellsnes Peninsula volcano. Famous internationally from Jules Verne’s “Journey to the Centre of the Earth.” Smaller than Vatnajökull, more accessible from Reykjavík.
Langjökull — Iceland’s second largest glacier, in the highlands between Reykjavík and Akureyri. Known for a man-made ice tunnel that runs inside it.
Mýrdalsjökull and Eyjafjallajökull — South Coast glaciers that sit over active volcanoes. Accessible as part of South Coast tours.
Most guided glacier hikes depart from Jökulsárlón in Vatnajökull National Park, or from the Jökulsárlón glacier lagoon area.
Types of Glacier Experience
Guided glacier walk — A 2–3 hour hike on the glacier surface with crampons, ice axe, and a certified guide. Suitable for most healthy adults with no specific technical training required. This is what most visitors do.
Ice cave tours — Natural ice caves form inside Vatnajökull’s outlet glaciers, carved by meltwater and geothermal activity. The famous blue ice caves are only accessible in winter (typically November–March) when they’re stable enough to enter. Summer brings different cave formations. All ice cave tours are guided — you cannot enter independently.
Glacier mountaineering — More technical ascents, crevasse rescue training, summit attempts. For experienced hikers who want a proper mountaineering experience. Requires separate booking and fitness assessment.
Ice tunnel (Langjökull) — A man-made tunnel dug into the glacier. More accessible than a surface hike — no crampons needed. A good option for people with mobility limitations or those who want glacier access without the physical demands of a hike.
Safety on the Glacier: What Actually Matters
Glaciers are not static. They’re rivers of ice — slow-moving, cracking, shifting, and full of features that are beautiful to look at and genuinely dangerous to fall into.
The real hazards:
Crevasses — Cracks in the glacier ice that can be centimetres wide or wide enough to swallow a person. Some are visible; many are hidden under a thin snow bridge. This is why you never walk on a glacier without a guide who knows the terrain — the safe route changes constantly as the glacier moves.
Unstable ice — Seracs (towers of ice), ice bridges, and calved sections can break without warning. A guide knows where not to stand.
Meltwater channels and holes — In summer, water flows across and through the glacier surface. Moulin holes (vertical shafts where meltwater drains into the glacier) can be hidden or deceptively small-looking at the surface.
Weather — Conditions on a glacier can shift from calm to white-out in minutes. Your guide monitors the forecast but also reads the conditions in real time and will turn around if it’s unsafe.
The bottom line: The glacier environment is manageable with proper gear and an experienced guide. It is not manageable without them. The majority of glacier accidents in Iceland involve people who walked onto the ice without a guide. This is not a judgment — it’s the statistical reality from Safetravel Iceland.
What Equipment Is Provided on a Guided Tour
On any reputable guided glacier hike, the following are provided:
- Crampons — Metal spikes that attach to your boots, giving grip on ice. The guide will fit these for you and instruct you on how to walk in them before you get on the ice.
- Ice axe — For balance and as a self-arrest tool if you slip. The guide will show you basic technique.
- Harness — On tours that involve any roped sections or technical terrain.
- Helmet — Standard on ice cave tours and on hikes in areas with ice overhead.
What is NOT typically provided:
- Waterproof jacket and trousers (you need to bring these)
- Warm layers underneath
- Gloves
- Appropriate footwear (see below)
What Footwear Do You Need?
This matters more than people realise. Crampons attach to your boots — if your boots aren’t suitable, the crampons won’t fit properly and your safety and comfort will suffer.
What works:
- Sturdy hiking boots with ankle support and a hard, flat rubber sole
- Winter boots with a firm (not soft) sole
- Waterproof is strongly preferred — the glacier surface is wet
What doesn’t work:
- Trainers / running shoes (soft soles, no ankle support, won’t hold crampons)
- Converse or canvas shoes
- Dress boots or fashion boots
- Flip flops (this has happened)
When you book, the tour operator will specify footwear requirements. Take them seriously. Some operators can rent boots — check at booking.
Physical Requirements
A standard glacier walk requires:
- Ability to walk on uneven terrain for 2–3 hours
- Comfortable on steep or sloping surfaces
- No specific upper body strength required
It is not a technical climb. The guide leads, sets the pace, and the route is chosen to suit the group. That said, it is physically active — you’ll be walking uphill, stepping over cracks, and maintaining balance on an unfamiliar surface.
Who should check with the guide before booking:
- People with knee or hip problems (descent on ice can be demanding on joints)
- Anyone with significant balance issues
- People who are pregnant
- Children under 8 (check minimum age on specific tours)
Don’t let uncertainty stop you from asking. Most guides have had clients of all ages and fitness levels and can give you an honest assessment of whether a specific tour is suitable.
Ice Cave Tours: What You Should Know
Natural ice caves in Vatnajökull are one of Iceland’s most photographed phenomena — and for good reason. The blue ice is unlike anything you’ll see elsewhere: compressed glacial ice that absorbs red light frequencies and transmits deep blue, creating an effect that looks lit from within.
When: Blue ice caves are accessible in winter only, typically November through March. Summer brings “crystal ice caves” formed differently — less vivid blue, but still striking.
Why only in winter? In summer, meltwater flows through the caves, making them unstable and dangerous. As temperatures drop in autumn, the caves stabilize enough for guided access. Glaciologists assess new caves each season — specific cave locations change year to year as the glacier moves and new formations appear.
Important: Ice cave tours sell out months in advance, especially for December–February. Book early.
Scenic Iceland’s Ice Cave Tour departs from the Vatnajökull National Park area. Small groups, glacier-certified guides, transport from the meeting point included.
Weather and safety: Ice cave tours are subject to cancellation in high winds or unsafe conditions. This is non-negotiable — no reputable operator will enter a cave that’s unsafe. If your tour is cancelled due to conditions, you’ll typically get a refund or rebook option.
Glacier Hiking with Scenic Iceland
The Vatnajökull Glacier Hike is a guided hike on Europe’s largest glacier, with a certified mountain guide, all technical equipment provided, and a group maximum of 8 people. The route is chosen based on current glacier conditions and takes in crevasse fields, ice formations, and views across the glacier towards the volcanoes beneath.
Duration: approximately 3 hours on the glacier surface, plus travel time. Departs from Jökulsárlón.
Minimum age: 10 years. No experience required.
What to bring: waterproof jacket and trousers, warm mid-layer, gloves, hat, suitable footwear (see above), snacks and water.
Frequently Asked Questions
Is glacier hiking dangerous?
Managed risk, not reckless adventure. With a certified guide and proper equipment, thousands of people hike glaciers safely in Iceland every year. The risk goes up dramatically without a guide — this is not a route you improvise.
What if it’s raining?
Glacier hikes run in rain. Iceland’s weather is unpredictable and tours generally don’t cancel for rain alone. Bring your waterproofs and go. Some of the most atmospheric glacier days are overcast.
Can I go on the glacier alone?
Technically there are no fences. Practically, it is strongly advised against by Icelandic authorities and Safetravel Iceland. The terrain changes constantly, hazards are not visible to an untrained eye, and rescue operations on glaciers are complex and dangerous. Tours exist because the environment demands them.
What happens if the tour is cancelled?
Reputable operators cancel only when conditions are genuinely unsafe. In most cases you’ll receive a full refund or be offered a rebooking. Read the cancellation policy before you book.
Do I need travel insurance?
Yes, and it should specifically cover adventurous activities including glacier hiking and ice cave access. Check your policy before you go — many standard travel insurance policies exclude adventure sports.
Ready to Walk on a Glacier?
The ice is out there, and it won’t be there forever — Iceland’s glaciers are retreating measurably every year. What currently exists is worth seeing.