From Reykjavik: Golden Circle and Lava Caving Adventure

Raufarhólshellir is the unusual opening act here. Before the famous Golden Circle sights, you head underground into an ancient lava tube in Iceland’s Blue Mountains, where parts of the route require crawling on hands and knees. The day then shifts from dark volcanic tunnels to Gullfoss, Geysir, Þingvellir, and Kerið.

I like the mix of a genuine caving adventure and Iceland’s best-known sightseeing route. I also like the practical format: transport, a guide, and caving gear are included, while the small-group setup can make the long day feel more personal. The main drawback is the pace. You have only short visits at some Golden Circle stops, and the cave can be physically demanding.

Key points to know before booking

• Raufarhólshellir comes first: Expect a guided one-hour visit in an old lava tube, with narrow, low sections.
• The Golden Circle follows at midday: You visit Þingvellir, Gullfoss, Geysir, and Kerið in one afternoon.
• Lunch is not included: You are dropped at Bakarameistarinn bakery in Holtagarðar between the two tour sections.
• The cave is active, not polished: This is a natural underground route, not a fully paved attraction.
• Clothing matters: Warm outdoor layers, waterproof jacket and pants, gloves, headwear, and good hiking shoes are advised.
• The day costs $203 per person: That is fair if you want both experiences, but less attractive if you only want a relaxed Golden Circle visit.

Why combine lava caving with the Golden Circle?

The Golden Circle is Iceland’s easiest major sightseeing route from Reykjavik. In one day, you see a national park tied to Icelandic history, a powerful waterfall, an active geothermal area, and a volcanic crater. Those sights alone make a strong day out.

The lava cave changes the feel of the trip. Instead of only looking at Iceland from viewpoints, you spend an hour moving through rock formed by ancient volcanic activity. The cave gives you a closer sense of how the island was built, though the tradeoff is clear: this is not a gentle walk.

The combination also makes sense if your Reykjavik stay is short. You cover four major Golden Circle stops and add an underground activity without booking two separate excursions. At 10 hours, it is a full day, but the range of sights is much broader than on a standard Golden Circle outing.

The morning pickup and drive to Raufarhólshellir

Pickup begins around 8:00 a.m. from designated points around Reykjavik, including the Bus Terminal, Hallgrimskirkja, City Hall, several hotels, and Skarfabakki Harbour. Reykjavik uses many shared pickup points, so look carefully for the correct location. The same stops may serve sightseeing coaches, city buses, and airport transfers, which can make the first few minutes confusing.

Allow patience at pickup. The information provided says the vehicle may arrive up to 30 minutes after the scheduled time, depending on your location and traffic. Keep your phone available and be ready at the stated stop rather than waiting inside your hotel.

The first drive takes about 40 minutes. Free WiFi is available on board, which is useful on a long day, though you should not count on having time to catch up on work. The point of this morning is the cave.

Inside Raufarhólshellir lava tunnel

Raufarhólshellir is the most distinctive part of the outing. A guide takes you into an ancient lava tube beneath the Blue Mountains, with the visit lasting about an hour. Caving gear is included, so you do not need to bring specialist equipment.

You should expect a natural route rather than a smooth, visitor-friendly walkway. The instructions specifically warn that you may spend considerable time crawling on your hands and knees in very narrow and low sections. That detail matters. A person with back or knee trouble may find this uncomfortable or impossible, and the activity is not suitable for people with mobility impairments.

Good hiking shoes are recommended. Warm clothing is essential, even if the weather in Reykjavik seems mild. Bring a waterproof jacket and pants, gloves, and something to cover your head. Hiking shoes and waterproof outer layers can be rented in advance for 1,000 ISK per item, but you need to arrange that with the local operator before the tour.

The cave is valuable because it feels physical and natural. You are not simply stepping off a bus for a quick photograph. You move through a volcanic formation and get a direct look at the forces that shaped Iceland. At the same time, the rough conditions mean you should not book this as a casual add-on for a day when you want to stay clean and comfortable.

Guides make a difference here. The caving leaders have been praised for making the outing fun and professionally run. The strongest feedback centers on the cave guide rather than the Golden Circle commentary, so pay attention to the guide assigned to the underground section. The experience can feel adventurous without requiring you to bring your own technical knowledge.

The bakery stop between two tours

After the cave, the morning section returns you to Reykjavik for about 45 minutes of free time. The group is dropped at Bakarameistarinn bakery in Holtagarðar, where you can buy lunch before the Golden Circle vehicle collects you around noon or 1:00 p.m., depending on the schedule provided for your booking.

This break is functional rather than scenic. The bakery is in an office-park area near a Bónus supermarket, not in a charming old town square. That setting has disappointed some people, but it gives you a practical chance to buy food before the afternoon drive.

Food and drinks are not included, so budget for lunch. Keep the break simple and watch the pickup time closely. The bus does not wait for a long restaurant meal, and this is a combination tour with a handoff between the caving and Golden Circle sections.

Þingvellir National Park and the meeting of plates

The afternoon route visits Þingvellir National Park, usually the last Golden Circle stop in the stated sequence. You have about 25 minutes for photographs, sightseeing, and a short walk.

Þingvellir matters for two reasons. It is the original site of Iceland’s parliament, making it one of the country’s key historical places. It is also where the North American and Eurasian tectonic plates pull apart, creating a visible rift valley.

Twenty-five minutes is enough to see the main feature and take photographs, but not enough for an extensive walk through the park. If Þingvellir is your main reason for visiting the Golden Circle, a longer independent visit may suit you better. On this tour, the stop works as a concise introduction before you continue to the waterfall and geothermal area.

Gullfoss, the waterfall with real force

Gullfoss is given about 20 minutes. That sounds brief, but the waterfall is powerful and easy to appreciate from the viewing area. Water rushes over several stages of dark lava rock before plunging into the gorge, producing the force and sound that make it one of Iceland’s signature sights.

Bring waterproof layers even in decent weather. Wind and spray can make the viewpoint feel colder than expected, and the ground may be wet. Your time is mainly for looking, taking photographs, and getting a sense of the scale.

Gullfoss is often the emotional high point of the Golden Circle. The lava cave is more unusual, but Gullfoss supplies the grand natural spectacle. The short stop is enough for a first visit, though you will want to move efficiently if you hope to see the waterfall from more than one angle.

Geysir and the geothermal ground

The bus ride from Gullfoss to Geysir takes about 10 minutes. You get around 45 minutes in the geothermal area, which is one of the more generous stops of the day.

The original Geysir gave its name to geysers around the world, but the area is also known for bubbling pools, steaming ground, and bursts of superheated water. The earth here looks restless. Water and heat rise from below, then escape with force.

Wear shoes with a firm grip and follow the marked paths. Geothermal ground is not a place for wandering wherever you please. The longer stop gives you time to wait for an eruption, take photographs, and look at the smaller pools rather than rushing straight back to the bus.

This is also a good place to listen to the guide. The geology is easier to understand when you connect the steam and eruptions with Iceland’s volcanic activity. Some past feedback has found the Golden Circle commentary less detailed than the caving guidance, so do not hesitate to ask questions if your guide leaves room for them.

Kerið crater adds a strong final color

Kerið is a 20-minute stop near the end of the route. This volcanic crater is known for the contrast between its red and dark volcanic sides and the water below. It offers a different view of Iceland’s geology from both the lava tunnel and the geothermal field.

The stop is short, but the crater is compact enough to make a quick visit worthwhile. You can take in the shape and colors from the rim, with time for photographs before returning to the bus. If you want a long walk around the crater, this schedule will feel tight.

Kerið is a smart addition to the day. It is not as famous as Gullfoss or Geysir, yet it breaks up the standard route and adds another volcanic formation. After a morning underground, it also gives you a final chance to see Iceland’s volcanic character in open air.

How the timing affects your day

The route involves several bus legs: about 40 minutes to the cave, another 40-minute transfer before the Reykjavik break, a longer drive of about 75 minutes to Þingvellir, and additional stretches between the main sights. You will spend a substantial part of the day seated.

That is normal for a Golden Circle trip, but it helps to set expectations. This is a sightseeing circuit, not a slow rural tour. The reward is variety. In 10 hours, you get an underground lava tube, a national park, a major waterfall, a geothermal zone, and a crater.

The small-group format is useful on a day with this many moving parts. It can make pickup, questions, and the caving equipment easier to manage. Still, the exact group size is not stated, so do not book on the assumption that it will feel like a private tour.

The guides are a key part of the experience. Mitch has been specifically praised for explaining the day well and helping with extra practical arrangements, including a puffin tour for the following morning. Petro has also been singled out as a capable and friendly guide. Guide quality can vary, so the strongest preparation is to know the route and ask questions when you have the chance.

Is $203 a fair price?

At $203 per person, this is not the cheapest way to see the Golden Circle. A basic Golden Circle trip may cost less because it does not include the caving section, gear, and the extra transport arrangement.

The value improves if you already want to try lava caving. Booking the two experiences together saves you from arranging separate transport and allows you to cover the main sights in one long day. Pickup and drop-off in Reykjavik, caving equipment, English-language guidance, and WiFi on the bus are included.

You still need to pay for lunch and drinks. Add the possible rental cost of 1,000 ISK per item if you need hiking shoes, a waterproof jacket, or waterproof pants. The total can rise, but these are useful costs to identify before booking.

I would call the price reasonable for an active combination tour, especially during a short Iceland visit. It is less convincing if your priority is a leisurely Golden Circle day or if crawling through a cave sounds unpleasant.

Who should book this tour?

I would recommend it to you if you want a full day with several different kinds of scenery and enjoy physical activities. It suits first-time Iceland visitors who want the main Golden Circle sights but also want something less predictable than another viewpoint.

It is also a good match for people who prefer guided transport. Driving in Iceland can be tiring, and this route involves several major stops. You can focus on the views and let the operator handle the roads.

I would not choose it for anyone with back or knee problems, limited mobility, or a strong dislike of confined spaces. The cave is not a token walk. Crawling through low, narrow passages is central to the experience.

Pack a proper outdoor outfit, eat before the afternoon departure, and keep your expectations realistic about stop lengths. You will see a lot, but you will not have unlimited time at each place.

Should you book the lava cave and Golden Circle?

Book this tour if you want Iceland’s famous sights plus one active, volcanic experience in the same day. The best parts are the natural cave, the force of Gullfoss, and the contrast between underground rock and the open geothermal fields.

Skip it if you want long walks, relaxed meals, or detailed time at every Golden Circle stop. The cave is physical, lunch is on your own, and the schedule moves quickly.

For an energetic visitor with only a few days in Reykjavik, the combination offers good value at $203. Bring the right clothing, take the pickup instructions seriously, and treat the bakery break as a quick practical pause rather than part of the sightseeing.

FAQ

How long is the tour?

The tour lasts 10 hours.

Where does the tour start?

Pickup is available from designated locations around Reykjavik, including the Bus Terminal, Hallgrimskirkja, City Hall, selected hotels, and Skarfabakki Harbour.

What time does pickup begin?

Pickup starts at about 8:00 a.m. The exact time depends on your chosen pickup location.

Which Golden Circle sights are included?

The tour includes Þingvellir National Park, Gullfoss waterfall, Geysir, and Kerið volcanic crater.

Which cave does the tour visit?

The tour visits Raufarhólshellir, an ancient lava tunnel in the Blue Mountains.

How long is the caving section?

The guided caving visit lasts about one hour.

Is caving equipment included?

Yes. Caving gear is included in the tour price.

Is lunch included?

No. Food and drinks are not included. You have time to buy lunch at Bakarameistarinn bakery in Holtagarðar between the caving and Golden Circle sections.

What should I bring?

Bring warm outdoor clothing, a waterproof jacket and pants, headwear, gloves, and good hiking shoes.

Is the cave suitable for people with back problems?

No. The cave includes very narrow and low sections where you may need to crawl on your hands and knees, so it is not suitable for people with back problems or mobility impairments.