Ice Cave Lofthellir exploration – A permafrost Cave inside a magma tunnel.

Lofthellir is not a polished show cave with paved paths and electric lights. It is a permafrost cave inside an old magma tunnel, reached by a rough off-road ride across the volcanic country around Mývatn. Inside, you crawl, climb, slide, and sometimes lie on your back over ice. That raw quality is the point.

I like two things especially: the journey through Lúdentarborgir gives you a close look at the volcanic forces that shaped Mývatn, and the small group, capped at 10, allows the guide to help people through the trickier spots. A guide named Thristy has been praised for strong local knowledge and calm handling of the route.

The catch is simple: this is a physically demanding outing. You must squeeze through tight spaces, move over slippery ice, and leave bulky bags behind. Anyone with claustrophobia, limited mobility, or poor fitness should think carefully before booking.

Key points before you book

• Lofthellir is a natural ice cave inside a lava tunnel, not a modern attraction with level walkways.
• The route includes crawling, climbing, scooting, and sliding on ice, with a few narrow sections.
• The drive through Lúdentarborgir is part of the experience, showing the volcanic country that formed the Mývatn area.
• The tour lasts about 4 hours and 30 minutes, including transport from the meeting point and roughly two hours at the cave.
• Groups are limited to 10 people, so the guide can offer more help than on a large coach excursion.
• Waterproof gloves, a waterproof shell, and wool socks are smart choices, while large backpacks can become a nuisance.

A frozen world inside Mývatn’s volcanic country

The Mývatn region is famous for volcanic features, but Lofthellir adds a less expected layer: ice surviving inside a lava tube. The cave formed as flowing lava left a hollow passage behind. In the cold conditions of the Icelandic interior, parts of that tunnel hold permanent ice.

That combination makes the cave more than a cold walk underground. You are seeing two different forces in one place. Fire created the tunnel, then long-lasting cold shaped the frozen interior. The guide helps connect what you see underground with the volcanoes and lava fields above.

The tour begins at Mývatn Berjaya Iceland Hotels in Reykjahlíð. From there, the vehicle heads toward Lúdentarborgir, the volcanic area associated with the formation of Mývatn. The rough drive is not just a transfer. It is the first chapter of the tour, taking you away from the settled roadside and into Iceland’s volcanic outback.

You should expect a rugged ride. The information provided does not promise a smooth road, and the route is described as an off-road drive. If you are prone to motion sickness or simply prefer easy transport, this part may feel like work. For an active outing, though, it sets the right tone.

The journey through Lúdentarborgir

The approach to Lofthellir gives your guide a useful chance to explain the region. You learn about the volcanoes that helped shape Mývatn, rather than arriving at the cave with no context.

I value this kind of explanation because the cave makes more sense when you understand its setting. The black volcanic ground, old magma passages, and frozen interior are connected. You are not looking at a random underground hole. You are following the story of lava, cooling rock, and Icelandic weather.

The total activity takes about four and a half hours. That is long enough for the drive, the cave visit, and the necessary time to move safely through a difficult route, but short enough to fit into a fuller Mývatn day. Admission to Lofthellir is included, which makes the listed price easier to assess.

Entering Lofthellir, where ice replaces pavement

At the cave, the experience changes quickly. This is not a place designed around comfort or easy access. You move through darkness and over ice, using the cave’s natural shape and the guide’s instructions to make progress.

The cave portion lasts about two hours. That is a substantial amount of time underground, especially when movement is slow. You are not simply walking in, taking a few photographs, and leaving. The route calls for active participation.

Expect several kinds of movement:

• Crawling through narrow sections
• Squeezing through tight spaces
• Sliding or scooting down icy parts
• Climbing and using ropes for help
• Spending time on your back while moving through the tunnel

The tight sections are short, according to the tour information, and the cave opens up after them. Still, short does not mean effortless. A narrow passage can feel intense if you dislike confined spaces, and ice makes ordinary movement less predictable.

The guide’s role matters here. A guide named Thristy has been singled out for local information and for leading a group through the difficult parts. Another guide response identifies Anton F. as part of the team, though the available information does not specify which guides operate on each departure. You should expect an English-speaking guide, but not necessarily a particular person.

What the ice route feels like in practice

The most useful thing to know is that you will not remain upright the whole time. The route includes crawling, climbing, and scooting, and you may find yourself on your back more than once. This is why a small camera or compact phone is more practical than a large camera bag.

A backpack can interfere with movement in narrow passages. One account describes leaving a larger backpack in the trailer and needing the guide’s help with a camera while navigating ropes and ice. That is a good warning, even if you normally prefer carrying all your equipment.

Dress for contact with cold, wet surfaces. Waterproof gloves, a waterproof outer shell, and wool socks are specifically useful suggestions for this tour. These are not fashion extras. You may touch ice, kneel, slide, or brace yourself on the cave floor, so ordinary city clothing can become uncomfortable quickly.

The information does not list a complete equipment package or specify whether special helmets, crampons, or other gear are supplied. For that reason, check the current operator instructions before setting out, and do not assume that your regular sightseeing clothes will be enough.

Photography also requires restraint. Lofthellir’s darkness, ice, ropes, and tight passages make a large camera awkward. Bring only what you can control while crawling and sliding. You will get more from the experience if you are not constantly protecting a fragile bag or lens.

Why the small group matters

The maximum group size is 10. The experience is described as a private tour, but the supplied details also give a maximum of 10 people, so I would treat it as a small-group outing rather than assume you will have the cave to yourself.

That limit is valuable in a cave. Narrow passages become slower when people bunch up, and each person may need a different amount of help. A small group gives the guide more room to explain the route and assist with ropes, ice, and awkward positions.

The guide also has to manage safety and pace. Someone comfortable crawling may move quickly, while someone nervous in a tight section may need time. A small group makes that difference easier to handle, although it cannot remove the physical demands of the cave.

The $410.48 price and what you receive

At $410.48 per person, this is an expensive half-day activity. You are paying for more than a cave admission. The price includes the guided visit to Lofthellir, the off-road transport from Reykjahlíð, and the service of a guide leading a small group through a route that requires care.

Value depends on what you want from Iceland. If you are looking for an easy sightseeing stop, the price is hard to justify. There are simpler ways to see volcanic features around Mývatn. If you want an active geology-focused outing that takes you into a place most people cannot reach on their own, the cost makes more sense.

The included admission removes one extra charge, and the four-and-a-half-hour duration gives the outing real substance. You are not paying for a short photo stop. Still, the high price means you should be honest about your interests and abilities before booking. A person who dislikes crawling may spend a lot of money to discover that the main attraction is not suitable.

The tour is booked an average of 55 days in advance. That suggests you should plan early, especially if your Mývatn schedule is fixed. Confirmation is provided at booking, and the activity is available in English.

Who should book this cave adventure

I would recommend Lofthellir to active people with a strong interest in geology, volcanic formations, and unusual natural places. It suits someone who wants to feel involved in the route rather than simply stand at a viewpoint.

It is also a good match for people who enjoy guided explanation. The guide connects the cave to Mývatn’s volcanic history and provides practical help when the route becomes awkward. That local context adds value, especially if you are already visiting the area’s other geological sights.

I would be cautious if you have limited mobility, a low fitness level, or claustrophobia. The published guidance calls for moderate physical fitness, while the actual movement described is more demanding than a normal walk. Tight spaces and slippery ice are central parts of the outing, not rare surprises.

Families or mixed-ability groups should discuss the route carefully before booking. The information does not give a minimum age or a detailed accessibility standard, so you should ask the provider directly if any member of your group has mobility concerns.

Meeting point, weather, and cancellation

The tour begins and ends at Mývatn Berjaya Iceland Hotels in Reykjahlíð, at 660 Mývatn, Iceland. It is near public transportation, and the activity returns to the same meeting point.

The outing depends on good weather. If poor weather causes cancellation, you are offered another date or a full refund. You can also cancel for a full refund if you do so at least 24 hours before the start time. Cancellations or changes made less than 24 hours before departure are not accepted for a refund.

That weather rule matters in Iceland, where conditions can change quickly. Keep some flexibility in your Mývatn plans if possible, particularly if Lofthellir is one of the main reasons for visiting the area.

Should you book Lofthellir?

Book this tour if you want a demanding, unusual encounter with Iceland’s geology and you are comfortable crawling through darkness, moving across ice, and carrying very little equipment. The volcanic drive, frozen lava tunnel, English-speaking guide, and small group create a distinctive half-day experience.

Skip it if you want an easy cave visit, dislike enclosed spaces, or have mobility limitations. At $410.48, this is not a casual add-on. For the right person, it can be one of the most memorable activities around Mývatn. For the wrong person, the tight passages and slippery floor will overshadow everything else.

FAQ

Where does the Lofthellir tour begin?

It begins at Mývatn Berjaya Iceland Hotels in Reykjahlíð, at 660 Mývatn, Iceland.

Where does the tour end?

The activity ends back at the meeting point in Reykjahlíð.

How long does the tour take?

The total duration is approximately 4 hours and 30 minutes.

How long do you spend inside Lofthellir?

The listed cave visit lasts about two hours.

Is admission to Lofthellir included?

Yes. Entry fees to Lofthellir Cave are included.

Is the tour offered in English?

Yes. The tour is offered in English.

How many people can join the tour?

The activity has a maximum of 10 participants.

Is Lofthellir suitable for people with limited mobility?

The tour requires a moderate level of physical fitness and includes tight spaces, climbing, crawling, sliding on ice, and time spent on your back. It is not suitable for people who cannot manage those movements.

What should I wear or bring?

Waterproof gloves, a waterproof shell, and wool socks are recommended. A small camera or compact bag is more practical than a large backpack because some sections are tight.

What happens if bad weather cancels the tour?

You will be offered a different date or a full refund if poor weather causes the activity to be canceled.

Can I cancel the tour for a refund?

Yes, if you cancel at least 24 hours before the experience starts, you can receive a full refund. Cancellations or changes made less than 24 hours before the start time are not accepted.