Katla Ice Cave Travel Guide

Inside the Katla Ice Cave.

The Katla Ice Cave is a natural ice cave in Kötlujökull, an outlet glacier of the Mýrdalsjökull ice cap, about 17 km north-east of Vík on Iceland's South Coast.

Go here for the tour: Katla Ice Cave Tour from Vík

It takes its name from Katla, one of Iceland's most powerful volcanoes, which sits under the ice cap. That's what makes this cave different: its walls are blue glacier ice striped with black ash from past eruptions.

It's also the easiest natural ice cave in Iceland to reach from Reykjavík, and one of very few you can visit all year. Every visit is guided, and most tours take about three hours from Vík.

Key Takeaways About the Katla Ice Cave

• A natural ice cave in Kötlujökull, the outlet glacier that drains the ice-filled caldera of the Katla volcano
• Blue ice banded with black volcanic ash; geologists have traced ash from Katla's 1918 eruption to the surface of this glacier
• Open all year, unlike the crystal ice caves in Vatnajökull National Park, which only run from October to April
• Tours start in Vík, 187 km from Reykjavík, and reach the glacier by super jeep in 30 to 60 minutes
• About 1 km of walking to the cave entrance; the easiest tours take children from age 6
• Never visit without a guide: there's no public road, and the cave changes shape through the year

What Is the Katla Ice Cave?

A blue ice tunnel in Kötlujökull.

The Katla Ice Cave is a meltwater channel inside Kötlujökull. Water running under and through the glacier carves a tunnel, and the ice around it stays solid enough to walk into.

Kötlujökull means "Katla's glacier". It flows east and south-east out of the Katla caldera and ends on the black sands of Mýrdalssandur, the flood plain its meltwater built.

There isn't just one Katla Ice Cave. Several operators run caves on Kötlujökull, and some keep their own. The cave you visit depends on your tour and on which passages are safe that season.

That's also why no two years look the same. Guides re-open, re-route or close passages as the ice moves and melts. Expect the cave to look different from photos taken even a few months earlier.

Why Is the Katla Ice Cave Black and Blue?

Ash bands in the ice above Katla.

The blue comes from the ice itself. Glacier ice is so dense that it absorbs red light and lets blue through, and inside a cave there's nothing to scatter that blue away.

The black comes from Katla. The volcano has erupted more than 20 times since Iceland was settled, usually every 40 to 80 years, and each eruption dropped a layer of ash on the ice cap. The glacier then folded those layers into itself and carried them downhill.

Katla's last big eruption started on 12 October 1918. A study published in the glaciology journal Jökull in 2021 found ash from that eruption exposed on Kötlujökull, carried about 15 km from where it fell inside the caldera, and estimated that the layer was over 2 metres thick when it landed.

So when you stand in the cave, the dark stripes in the walls are a record of real eruptions, moved slowly down the mountain by the ice. That's the reason people call it a cave of fire and ice.

Katla Ice Cave vs Other Ice Caves in Iceland

Iceland has three kinds of ice cave experience, and they suit different trips.

The Crystal Blue Ice Cave tour is the one in most photos, but it only runs in winter and starts at Jökulsárlón, about 380 km from Reykjavík. The Langjökull ice tunnel runs all year, but it's engineered rather than natural.

Katla sits between the two. It's a real glacier cave, it's open in summer, and it fits into a day on the South Coast.

How to Get to the Katla Ice Cave

Ash-streaked ice on the edge of Mýrdalsjökull.

You can't drive to the Katla Ice Cave yourself. There's no public road to the ice, and the tracks across the glacial outwash aren't suitable for normal cars or standard rental cars in Iceland, 4x4s included.

Instead, drive to Vík and join a tour there. Vík is 187 km from Reykjavík on Route 1, the Ring Road, which takes about 2.5 to 3 hours in good conditions.

Each operator has its own meeting point in Vík, so check your booking before you set off. Most bases are on the main road through the village, with parking nearby.

From Vík, the super jeeps head east on Route 1 across Mýrdalssandur, then turn north onto rough tracks toward the glacier. Operators quote 30 to 60 minutes each way, depending on where their cave is that season.

If you'd rather not drive, several tours pick up in Reykjavík and add Seljalandsfoss, Skógafoss or Reynisfjara to the day. Expect around 10 hours door to door.

What to Expect on a Katla Ice Cave Tour

The roped path across the ice.

Most Katla Ice Cave tours from Vík follow the same pattern and take about 3 hours in total:

1. Meet in Vík. Arrive about 15 minutes early at your operator's base.
2. Super jeep ride. Cross black sand plains, glacial riverbeds and moss-covered hills shaped by Katla's floods.
3. Gear up. At the glacier edge, guides hand out helmets and crampons (most also give headlamps) and run a safety briefing.
4. Walk to the cave. Expect about 1 km over uneven, icy ground. Some routes are longer, up to about 2 km, and a few have short, steep sections with ropes.
5. Explore the cave. Most tours allow 45 to 60 minutes in the cave area, with time for photos.
6. Return to Vík. The jeeps drive back the way they came.

Some tours visit a second, smaller cave if one has formed nearby that season. Longer tours add a guided glacier hike on Mýrdalsjökull or a stop at a quiet black sand beach.

The walk is the only physical part. If you can manage a kilometre on rough, slippery ground with crampons on, you can do this tour.

Katla Ice Cave Tours and Prices

Prices on Guide to Iceland start from about ISK 24,000 per person for a tour from Vík and about ISK 35,500 for a full day from Reykjavík (October 2026). Safety gear is always included.

The main options are:

• Classic tour from Vík. About 3 hours, open all year, children from age 6. The Katla Ice Cave Tour from Vík by Super Jeep is the most-reviewed Katla tour on our site, with five departures a day between 9:00 and 16:00.
• Ice cave and glacier hike. About 4 hours, April to October, age 12 and up. The Katla Ice Cave & Glacier Hiking Tour adds time on the ice and a private black sand beach.
• Full day from Reykjavík. About 10 hours, all year, age 8 and up. The South Coast and Katla Ice Cave Super Jeep Trip stops at the big waterfalls on the way.
• Private tour. The Private Katla Ice Cave Tour from Vík keeps the jeep and the guide to your group.

You can compare every option, with live prices and availability, on our page of Katla tours.