Reviewed · BLUE LAGOON & GEOTHERMAL SPAS
Hellisheiði Geothermal Exhibition: Entry and Audio Tour
See Iceland’s power source up close. The Hellisheiði Geothermal Exhibition offers a smart, hands-on look at how heat beneath Mount Hengill becomes electricity and hot water for communities. I like the interactive displays and the freedom to move at your own pace. I also like that the visit includes the Carbfix room, which connects geothermal power with current efforts to reduce climate pollution.
The main consideration is that this is a self-guided exhibition, not a behind-the-scenes plant tour. You will not automatically receive a hardhat or enter the working machinery areas, and the audio guide may feel less natural than having an employee explain the process in person.
In This Review
- Key points at a glance
- Why Hellisheiði matters to Iceland
- Start with Stop 9: the Production Process
- An audio tour with freedom to set the pace
- Interactive displays, films, and family appeal
- The Carbfix room and Iceland’s climate work
- Viewing platforms and the setting beneath Mount Hengill
- How long should you allow?
- Is $21 a fair price?
- Who will enjoy this most?
- How to get more from the visit
- Should you book the Hellisheiði Geothermal Exhibition?
- FAQ
- Where is the Hellisheiði Geothermal Exhibition?
- How much does entry cost?
- Is the tour guided by an employee?
- What should I bring?
- What are the opening hours?
- Is the exhibition wheelchair accessible?
Key points at a glance

- A working geothermal plant near Reykjavík: Hellisheiði is about 20 minutes from Reykjavík, beneath Mount Hengill and surrounded by lava fields, moss, and mountain scenery.
- Stop 9 explains the core process: The Production Process display is a useful place to begin because it lays out how thermal power and hot water are taken from the earth.
- Interactive learning for several ages: Films, displays, and audio commentary make the visit more than a room full of technical panels, though younger children may need help.
- Carbfix adds a climate focus: The dedicated room explains the plant’s partnership with a major carbon storage and climate solution.
- Flexible, self-paced timing: You can arrive during opening hours and stay as long as you like after entering, with no fixed group schedule.
- Good value for curious minds: At $21 per person, it is a reasonable stop if you care about science, energy, engineering, or Iceland’s environment.
Why Hellisheiði matters to Iceland

Iceland is famous for hot springs, steaming ground, and volcanic activity. At Hellisheiði, those natural forces are put to work on an industrial scale. The exhibition shows how heat from below the earth is used to produce renewable energy and hot water, rather than leaving the subject at the level of pretty geothermal pools.
That practical connection is what makes the visit worthwhile. You are not simply looking at a model of an energy plant. You are visiting an exhibition at the Hellisheiði Power Plant, a working facility beneath Mount Hengill. The setting helps you understand that Iceland’s energy system is tied closely to its geology.
The plant is surrounded by black lava fields, moss, and mountain scenery. Even before you enter, the location gives useful context. The rugged terrain is not just a scenic backdrop. It is part of the natural system that makes geothermal energy possible.
The exhibition presents Hellisheiði as the largest single-site geothermal power plant in the world. That claim gives the visit a clear sense of scale, but the displays are designed to explain the basic process in plain terms. You do not need a science degree to follow along.
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Start with Stop 9: the Production Process

If you want to understand the exhibition efficiently, I would begin at Stop 9, Production Process. This is the display that explains how thermal power and hot water are extracted from the earth and turned into useful energy.
Starting here helps you make sense of the other exhibits. Instead of walking through displays as isolated facts, you can watch for the steps in the full system: heat below ground, industrial equipment, energy production, hot water, and environmental management.
This is especially helpful if geothermal power is new to you. The process can sound simple at first, but the engineering behind it is not. The exhibition makes clear that successful geothermal production requires research, planning, expensive equipment, and careful control of natural resources.
You will likely get more from the visit if you give this stop enough time. A quick walk through the room can leave the process feeling vague. Stop 9 is the place to slow down, listen carefully, and build a basic mental picture before moving on.
An audio tour with freedom to set the pace

Your admission includes a self-guided audio tour in English or Icelandic. You use your own Android or iOS smartphone, so bring a charged phone and headphones. That small bit of preparation matters. Without headphones, you may have a harder time hearing the commentary clearly in an exhibition space.
The flexible format is one of the best parts of the visit. There is no fixed departure time for a group and no guide urging you from one exhibit to the next. You can spend extra time on the displays that interest you and move quickly past material that feels too technical.
I find that format particularly useful for mixed groups. Someone fascinated by engineering can listen to every explanation, while another person can focus on the films, views, or simpler interactive material. You are not locked into one pace.
The tradeoff is personal guidance. The audio commentary cannot respond to your questions or adjust its explanation to your level of interest. One visitor wished an employee had walked through the exhibition, especially because the facility was quiet during the visit. You can ask the on-site staff questions, but the standard experience remains self-guided.
Reception staff are available to help, and Antonia was singled out for answering questions carefully during one visit. That means you are not entirely on your own, but you should not book this expecting a full guided tour.
Interactive displays, films, and family appeal

The exhibition uses interactive displays and audio-visual presentations to explain geothermal energy. That mix helps break up the technical material. You are not expected to read long blocks of text from beginning to end.
The films are useful for showing processes that you cannot easily see in a public viewing area. The interactive elements also give you a way to understand the plant rather than simply admire it. The strongest response to the exhibition comes from people who enjoy science, technology, engineering, or environmental subjects.
Adults and teenagers should find enough substance to keep the visit interesting. A science teacher praised the quality of the information and found material worth sharing with students. That is a good sign for families with older children or teens who ask how things work.
Younger children may need help. The subject can become complex, and the audio tour assumes some attention and patience. The exhibition is family-friendly in format, but it is not an amusement attraction. If your children need constant action, the technical displays may not hold them for long.
For families, I would suggest making the visit more active by asking simple questions as you go. How does the heat reach the plant? What is the difference between electricity and hot water production? Why does carbon storage matter? The displays provide the material, but an adult may need to turn it into a conversation for younger children.
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The Carbfix room and Iceland’s climate work

The Carbfix room adds an important second layer to the exhibition. It explains the power plant’s partnership with Carbfix, a climate solution connected with reducing the effects of global warming.
This section matters because it moves beyond the basic message that geothermal energy is renewable. Renewable power still involves industrial activity, infrastructure, and environmental questions. Carbfix shows that Iceland’s energy work also includes efforts to address carbon emissions and climate change.
You may find this room most interesting if you want to understand the wider environmental policy around geothermal energy. It gives the exhibition a present-day focus rather than treating the power plant as an engineering achievement frozen in time.
Do not expect the Carbfix section to answer every climate question. Its role is to introduce the partnership and explain why it matters. If you are already interested in carbon removal or energy systems, you may want to spend extra time here.
Viewing platforms and the setting beneath Mount Hengill

Inside the exhibition, viewing platforms give you a better look at the surrounding Icelandic scenery. These are useful pauses between technical displays. You can step away from the audio commentary, look across the lava fields and moss, and connect the energy story with the ground beneath your feet.
The setting is one reason this works well as a stop outside Reykjavík. The exhibition is not in a city museum. It sits by the plant itself, in a mountain area shaped by volcanic activity. That physical setting adds meaning to the displays.
You should still keep expectations realistic. The experience does not promise a hardhat, safety vest, or a guided walk through the main plant machinery. You may see an operating facility and gain a sense of its scale, but the exhibition is the public-access part of the visit.
For some people, that will be enough. You can study the displays without safety restrictions or a large group around you. Others may feel they missed the most exciting part, especially if they hoped to stand beside the massive industrial equipment or take photographs inside the working plant.
How long should you allow?

The activity is valid for one day, and the start time is flexible within the opening hours. You can stay as long as you like after entering. In practice, the exhibition can work as a shorter stop, but the value depends on how carefully you listen and read.
If you hurry, you might finish in about an hour. That gives you time for the main displays, some films, the audio guide, and a look at the viewing areas. If you enjoy science and want to study the production process closely, allow longer.
The seasonal hours are important:
- From November 1 through March 31, the exhibition is open from 9 AM to 4 PM.
- From April 1 through October 31, it is open from 9 AM to 5 PM.
This flexible setup is handy when you are fitting the exhibition into a day around Reykjavík or Selfoss. You can stop when it suits your route rather than arranging your entire day around a short guided departure.
The address is The Geothermal Energy Exhibition, Hellisheiðarvirkjun, 801 Selfoss, Iceland. Free parking is included. You go directly to the entrance with your ticket, rather than meeting a guide elsewhere.
Is $21 a fair price?

At $21 per person, I consider this a fair price for the right audience. You receive entrance, the audio tour, access to the interactive exhibition, and free parking. There is no separate charge for the Carbfix room or viewing platforms.
The value is strongest if you are already planning to travel near the plant or want a practical indoor stop close to Reykjavík. You are paying for clear interpretation of a working energy system, not merely admission to a scenic viewpoint.
The price is less compelling if you have little interest in technology or environmental subjects. The exhibition has films and interactive features, but its central topic remains geothermal engineering. Someone looking only for dramatic Icelandic scenery may prefer to spend the same time elsewhere.
Food and drinks are not included, though they are available to purchase on-site. That makes the exhibition easier to fit into a longer outing, but you should not assume admission includes a meal or a full café experience.
Who will enjoy this most?

I would recommend Hellisheiði to you if you like understanding how places function. It is especially suitable for:
- Adults interested in renewable energy
- Teenagers studying science or technology
- Families with children who enjoy hands-on displays
- Visitors curious about Iceland’s use of natural resources
- Anyone looking for a flexible stop near Reykjavík
- People interested in carbon reduction and Carbfix
It is less suitable if you want a lively guided excursion, outdoor adventure, or access to every part of the power plant. The exhibition explains the facility well, but it does not replace a technical plant tour.
The wheelchair-accessible design also makes it a practical choice for visitors who need accessible facilities. You should still bring your own charged phone and headphones for the audio component.
How to get more from the visit
Do not simply walk in and follow the audio stops in order without thinking about the bigger picture. I would start with Stop 9, then return to earlier displays with a clearer idea of the production chain.
Use the viewing platforms as a reset between technical sections. The views help you connect the machinery and science with the volcanic setting outside.
Ask staff questions if a step is unclear. The reception team can help, and the experience is more rewarding when you stop to clarify a term rather than letting the explanation pass by.
If you are visiting with children, explain the main process in simple stages. First, heat comes from underground. Next, the plant uses that heat to produce energy and hot water. Then the exhibition shows how engineers manage the system and address environmental concerns.
Bring headphones that fit comfortably. The audio guide is a central part of the experience, and using your own equipment gives you better control over volume and pace.
Should you book the Hellisheiði Geothermal Exhibition?
Book it if you want a clear, self-paced explanation of Iceland’s geothermal power system. The interactive exhibits, films, audio tour, Carbfix room, and mountain setting make this a worthwhile $21 stop for science-minded adults, teens, and curious families.
Skip it if your priority is a guided plant walk or close access to the working machinery. The absence of a hardhat tour is the main limitation, and the audio guide can feel somewhat disjointed compared with a live explanation.
For most people interested in how Iceland turns underground heat into practical energy, I would make the stop. Begin at Stop 9, allow at least an hour, and treat the surrounding scenery as part of the lesson. The exhibition does not just tell you that Iceland uses geothermal power. It shows the engineering, environmental work, and natural setting behind that choice.
FAQ
Where is the Hellisheiði Geothermal Exhibition?
It is at The Geothermal Energy Exhibition, Hellisheiðarvirkjun, 801 Selfoss, Iceland, roughly 20 minutes outside Reykjavík.
How much does entry cost?
Entry costs $21 per person. The price includes admission, the self-guided audio tour, and free parking.
Is the tour guided by an employee?
No. The standard experience is self-guided with audio commentary in English or Icelandic. On-site staff are available if you have questions.
What should I bring?
Bring a charged Android or iOS smartphone and headphones for the audio tour.
What are the opening hours?
From November 1 through March 31, opening hours are 9 AM to 4 PM. From April 1 through October 31, opening hours are 9 AM to 5 PM.
Is the exhibition wheelchair accessible?
Yes. The exhibition is wheelchair accessible.
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