Askja Caldera Tours: Highland Day Trips Compared

A Caldera In The Highlands

Askja is a volcano in the Icelandic highlands, and the word caldera describes the large collapse depression at its top rather than a single cone. Askja volcano sits in a landscape of black sand and old lava, far from any town, which is exactly why reaching it takes a full day. The feature most visitors come for is Viti, an explosion crater beside the Askja caldera. The walk down into Viti is steep, and the walk back out is steeper, so the day is rated for people with at least moderate fitness rather than casual sightseers.

Inside the caldera system there is also the Askja lake at the bottom, which the super jeep itinerary on this page includes. The land around Askja was reshaped by the 1875 eruption, one of the most violent in Iceland's recorded history, and the fine ash from that event forced emigration from parts of east Iceland. You will hear that story from the guide on the drive, because the terrain on the way in is part of the same volcanic system. There is no visitor centre, no cafe and no facilities at the site beyond what the operators carry with them, which is worth remembering when you pack.

The Numbers That Decide the Day

Three listings reach Askja and they are not variations on one price. The 4x4 bus runs $310 for a full day, the super jeep from Lake Myvatn is $470 over 12 hours, and the Askja and Holuhraun day from the same area is $480, also 12 hours, capped at 10 people per booking and leaving at 08:00 from the Icelandair Hotel. The geology behind them is just as specific: Holuhraun was laid down by the 2014-2015 eruption, and the Met Office reports that the uplift episode at Askja which began in 2021 has now ended.

Nothing out there sells food, so the day runs 12 hours on what you carry.

Holuhraun, The Lava Field You Drive Through

The route from Myvatn passes Holuhraun, the lava field beside Askja that was left by the 2014-2015 eruption. That eruption produced more new lava than any other in Iceland since 1783, which makes the crossing itself a genuine volcano stop and not just a road. You will cross cooled black lava for a long stretch of the drive, and the guides stop so you can stand on rock that was molten within living memory.

It is worth being clear about what Holuhraun is not. It is not an active eruption, and nothing on this route is flowing. Photographs in tour listings sometimes show fountains, but the operators sell a drive and walk across cooled lava, and that is what you get. No eruption is flowing in Iceland at the time of writing. If a new eruption opens somewhere on the Reykjanes peninsula, access to it is decided by the Department of Civil Protection and Emergency Management, not by the tour operator, and that applies to any volcano in the country. Askja itself is quiet in a measurable way. The Met Office reports that the uplift episode at Askja which began in 2021 has ended, so the ground there is no longer showing the inflation that once drew scientific attention.

What the National Park Publishes About the Site

The park's own information fills in what the tour listings leave out. The floor of the caldera sits at 1,100 metres and the rim runs 1,300 to 1,500 metres, inside the Dyngjufjoll mountains. There is a car park and toilets at Vikraborgir, and in high season a ranger is on site daily and leads walks.

The marked walk from Vikraborgir to Oskjuvatn is 2.5 km and about 2 hours, rated easy. The route from the Dreki huts over Dyngjufjoll to Viti is 8 km and rated challenging, which is a different day entirely. Accommodation out there is the Touring Club's: 55 beds at Dreki, 25 at Herdubreidarlindir, each with a campsite and toilets.

The sentence that matters most for a day trip is the plainest one the park prints: there are no shops, no restaurants and no petrol stations at Askja or in Kverkfjoll.

The Eruptions That Shaped It

Askja has erupted several times in recorded history. The 1875 eruption threw pumice and ash far enough east to strip vegetation and empty settlements in Jokuldalsheidi, and the park names it as one of the pressures behind Icelandic emigration to North America. The most recent eruption in Askja itself was in 1961, which laid down the Vikrahraun lava field.

Holuhraun, the lava field the super jeep tours pair with the caldera, came from the 2014-2015 eruption and released enough gas to damage air quality in settlements all around the glacier. American astronauts trained in this landscape because it was thought to resemble the Moon, which tells you what the ground underfoot is like.

Highland F-Roads And River Crossings

Askja is reached only on highland F-roads that snow closes for most of the year. These are rough gravel tracks with unbridged rivers, and the river crossings on the highland track are the reason an ordinary vehicle cannot follow. You need either a super jeep with the clearance and drive to ford the rivers or a 4x4 bus run by an operator equipped for the route. A regular rental car is not an option, and trying it in a small 4x4 hire is how people get stranded, because insurance for Icelandic rentals does not cover river crossings anyway.

The practical consequence is that an Askja caldera day is a guided day or nothing for almost every visitor. Self-driving is technically possible in a properly equipped highland vehicle in summer, but the operators from Myvatn exist because the route, the weather and the river levels all change, and a local guide reads them daily. The tour listings describe summer as the only workable season. The highland roads close with the first snow and stay shut until the track dries out, so the window is the height of summer and nothing else.

What The Day Costs

Prices for the three listed Askja days range from $310 on the 4x4 bus to $480 on the super jeep with the smallest group. The two super jeep options sit close together at $480 and $470, and both are run by Geo Travel. The bus option is run by Myvatn Tours. All three include free cancellation up to 24 hours before the start. None of the listings includes lunch, drinks, hotel pickup or a stated minimum age, so the ticket price is genuinely the floor of what the day costs. You add your own food for twelve hours, which is not optional, because there are no shops or restaurants on the route.

The table below sets the numbers side by side so you can see the gap between the bus and the jeeps. Note the review counts before you weigh the ratings. The bus day has a perfect rating from just three reviews, while the lower-rated jeep day has fourteen. Small samples move around, so read recent written reviews on the platform you book through rather than trusting the headline number alone.

Where And When You Start

All three departures start from the Lake Myvatn area, which makes Myvatn the practical base for an Askja caldera trip. The clearest pickup point is stated on the top-rated tour, which leaves at 08:00 from the Icelandair Hotel in Myvatn. The other two listings say only the Myvatn area or the Lake Myvatn area, so confirm the exact meeting point with the operator after booking. There is no hotel pickup on any of the three, which is unusual for Iceland tours and means you need your own way to the meeting point.

Plan the night before as part of the trip. A 08:00 start on a twelve-hour day means eating a real breakfast, filling water bottles and packing layers and food before you sleep. If you are staying somewhere other than Myvatn, for example around Akureyri, you will need to drive to the meeting point early, and the pack does not state any pickup from further afield. Booking two nights around Myvatn removes all the risk of a missed morning start on a tour that only runs a few months of the year.

The Super Jeep Days

The two super jeep options are the fullest versions of the trip. Both are run by Geo Travel, both last twelve hours, and both use small vehicles built for highland tracks. The Viator listing at $480 caps the group at ten people per booking and includes national park fees, and its highlights combine the Askja caldera, the Viti explosion crater and the Holuhraun lava field, which Iceland has not matched in size since 1783. This is the best documented of the three, with a 4.9 rating across 32 reviews.

The GetYourGuide super jeep at $470 covers the same ground, including the walk to Viti crater and the Askja lake at the bottom of the caldera, and its selling point is flexibility. The guide can stop where conditions and interest justify it, which is worth more than it sounds on a route with no facilities and changeable weather. Its rating sits at 4.2 across 14 reviews, lower than its sibling, and the listing itself advises reading recent reviews before booking. Both jeep days describe the difficulty honestly. One says moderate fitness with a long day on rough tracks, and the other says a long day with a steep walk into the crater. If your knees dislike steep descents, think hard about Viti before booking either.

The 4x4 Bus Day

The Askja Caldera Classic from Myvatn Tours is the budget route in, at $310 against roughly $470 to $480 for the jeeps. It uses a 4x4 bus that handles the highland track and the river crossings, and a guide covers the geology on the way. For anyone who wants the caldera without paying for a small vehicle, this is the sensible pick, and it is still a full day from the Myvatn area on the same rough roads.

The trade-offs are real. The listing states no group size, which means you may travel with a bus load rather than a jeep load, and a bus cannot stop as freely as a jeep. The platform shows only three reviews, all positive, so the evidence base is thin compared to the 32 reviews behind the Viator jeep day. The duration is given as one day rather than a stated twelve hours, which does not tell you the exact pickup time, so confirm it with the operator. What it shares with the jeeps is everything that defines this trip. It runs summer only, the highland roads close with the first snow, lunch is not included, and there is no shop or restaurant anywhere on the route. If the price gap buys you a second night at Myvatn or a good dinner, that is a legitimate way to spend the savings.

What You Will Not See

You will not see flowing lava on an Askja caldera tour, and no tour on this site can promise it. No eruption is flowing in Iceland right now. The Holuhraun lava field you cross is cooled, and the last eruption that formed it ended with the 2014-2015 event. Marketing photographs sometimes show fountains, but the product is a drive and a walk across solidified rock. If seeing active lava is the whole point of your trip, an indoor lava show in Iceland guarantees molten rock, while outdoor eruptions cannot be guaranteed to anyone.

You also will not find services at the destination. There is no cafe, no shop and no restaurant on the route, which the listings repeat for a reason. Twelve hours with nothing sold means you carry all your food and water from Myvatn. Weather can also remove parts of the day. A guide may shorten stops, skip the walk down into Viti or turn back if conditions on the track deteriorate, and a listing price never buys you a guaranteed view. Fog in the highlands can close the caldera completely for a day. Book this trip early in your Iceland stay so a weather cancellation leaves room to rebook.

Who Should Not Go

The operators rate their own days honestly, and their wording sets the bar. The descriptions call for moderate fitness on a long day over rough tracks, and one flags the steep walk into the crater directly. If you cannot manage a steep climb out of a crater at altitude after hours in a vehicle, the day will not work. Small children are not excluded by any stated minimum age on these listings, but none of the operators states a minimum age at all, so ask the operator directly before booking with young kids rather than assuming.

Anyone with back problems should think carefully, because twelve hours on highland F-roads means sustained shaking over washboard gravel and through river crossings. Photographers with expensive gear should pack it in padded, weatherproof bags. And anyone who tends to get cold should note that the highlands stay cold even in summer, with wind that makes it colder still. Read the guide on what to wear on a volcano hike and pack for wind and low single-digit temperatures rather than for a summer day at Myvatn. If any of this sounds like too much, the Thrihnukagigur volcano descent or the Kerid crater offer crater experiences a short drive from Reykjavik instead.

A Short Summer Window

All three Askja listings say the same thing about timing. The trips run in summer only. The highland F-roads are shut by snow for the rest of the year, and the bus listing adds that the highland roads close with the first snow, which can happen early. That gives you a window at the height of summer, and no amount of money opens the route outside it. Unlike the south coast volcano tours, which run year round, an Askja caldera day is a summer plan or no plan.

Within the window, book early in your trip. The track depends on weather on the day, and river levels rise with rain and melt. Operators cancel or shorten days rather than take risks on a route with no services, so keeping a spare day in Myvatn protects the booking. Summer also brings its own highland reality. The sun barely sets, which helps the long drive, but wind and cold are constants, and the highlands have their own weather separate from the coast. Check road and weather conditions the evening before and again in the morning, and treat a guide's decision to change the plan as the correct one. The guide can see the sky over the highlands and you cannot.

Is Anything Erupting In Iceland

No eruption is flowing in Iceland as things stand. That covers Askja, where the Met Office reports that the uplift episode which began in 2021 has ended, meaning the measured inflation at the volcano has stopped. It also covers the Reykjanes peninsula near Reykjavik, though activity there is the item to watch. The Icelandic Met Office reports continued uplift at Svartsengi, with the land rising about five centimetres over the past three months. While uplift continues, the most likely scenario stays a magma intrusion propagating from Svartsengi into the Sundhnukur crater row. The Reykjanes area lies about 30 km from Reykjavik, and the helicopter operator's own listing describes 12 eruptions there in the last 4 years.

What does that mean for a question people search a lot, whether a prediction exists for another eruption in 2026? Volcanologists state scenarios and probabilities, not dates. Uplift at Svartsengi tells you where the next Reykjanes intrusion is most likely to begin, and nothing anywhere promises when lava will reach the surface. On the popular Fimmvorduhals hiking trail, ICE-SAR's Safetravel service warns that conditions are dangerous and advises people not to hike it while they stay that way. For how this affects travellers generally, see our page on whether Iceland is safe during an eruption.