REVIEW · REYKJAVIK
Reykjavik: The Lava Tunnel and Golden Circle Small-Group Tour
Book on Viator →Operated by Arctic Adventures · Bookable on Viator
That underground part is the big draw.
This Reykjavik day tour mixes a hands-on morning in the Lava Tunnel near the Blue Mountains with an afternoon loop on the Golden Circle. You’re not just driving past Iceland’s best-known sights—you’re also getting suited up and exploring real lava formations underground. I like how the route is built for first-timers who want variety, without feeling like you’re bouncing around all day with no plan.
Two things I really like: you get round-trip transport with Reykjavik pickup (from a specified list), and the tour includes caving equipment so you’re not figuring that part out at the last minute. One possible drawback to think about: because it’s a combo (caving first, then Golden Circle), the day’s timing can feel a bit tight on the Golden Circle stops compared with doing them on a separate tour.
In This Review
- Key things to know before you go
- A lava-cave morning plus Golden Circle afternoon (in plain English)
- Raufarhólshellir Lava Tunnel: what you’re actually doing underground
- What to expect
- What to wear so you don’t regret your day
- The human part: the guide matters here
- The Golden Circle part: Gullfoss, Geysir, and Þingvellir in one run
- Gullfoss Falls: short stop, big photo payoff
- Geysir and Strokkur: when you want the geyser show
- Þingvellir National Park: two tectonic plates in the same frame
- Reykjavik pickup and the small-group reality (capped at 19)
- Pickup rules: know them before you plan your morning
- Start time and how to not miss the bus
- Why the included caving gear and Wi‑Fi actually help
- Food, timing, and the combo-tour trade-off
- Price and value: what $203.87 covers for this 10-hour day
- Who should book this tour (and who should choose differently)
- FAQ
- How long is the tour, and when does it start?
- Is lunch included?
- Do I need previous caving experience?
- What should I wear for the lava tunnel?
- How big is the group?
- Does the tour pick up from any hotel in Reykjavik?
- Should you book this Lava Tunnel and Golden Circle small-group tour?
Key things to know before you go

- Raufarhólshellir lava tunnel: a guided underground visit with equipment provided and around an hour on site
- Small group capped at 19: easier pacing and less chaos than big coach tours
- Golden Circle drive after switching tours: lunch time is handled at a stop with a bakery and supermarket
- No caving experience needed: you can crawl or walk through underground passages, with routes offered for different comfort levels
- Gear + clothing matter: waterproof layers, headwear, gloves, and sturdy shoes are part of the deal
- Wi‑Fi on board + mobile ticket: small convenience perks that actually help on a long day
A lava-cave morning plus Golden Circle afternoon (in plain English)

This is a full-day Iceland combo, starting early in Reykjavik. The day is set up as two parts: you’ll head out for caving in the morning, then you’ll rejoin the Golden Circle portion later. You’ll be dropped at a switching point between the two experiences, with time to eat before the Golden Circle drive gets going.
For many people, that combo format is exactly the point. You get the Wow Factor of lava caves (colorful rock textures, strange shapes, and that “how did this form?” feeling), and you also hit the classic Golden Circle trio—Gullfoss, the Geysir area, and Þingvellir—without having to arrange two separate tours. It’s efficient, especially if this is your one big day outside Reykjavik.
The practical catch is pacing. The schedule is designed to fit both experiences into roughly 10 hours, so your Golden Circle time may feel shorter than on a dedicated Golden Circle tour. If you’re the type who loves lingering for photos and second looks, you’ll want to keep that in mind going in.
You can also read our reviews of more tours and experiences in Reykjavik.
Raufarhólshellir Lava Tunnel: what you’re actually doing underground
Your first stop is Raufarhólshellir (the Lava Tunnel). This is one of the most popular lava-cave experiences in the Reykjavik area, and the tour gives you an admission ticket for that part. The underground segment is about an hour, and you’ll use provided caving equipment.
What to expect
Think “guided cave walk” more than “easy stroll.” The tour notes that no previous caving experience is required, but you will crawl or walk through underground passageways. That means you should be ready for uneven footing, steps, and rock formations up close.
The best way to describe it: it’s a controlled adventure. A guide is with you, and you’re not wandering around blindly. But you do need to move steadily—especially on rocks and steps—and you should be comfortable with tight, underground conditions.
What to wear so you don’t regret your day
This tour is very clear about clothing, and you should take it seriously. Plan on warm outdoor clothing, plus a waterproof jacket and pants. You’ll also want headwear and gloves for the cave. Sturdy hiking shoes with good grip matter, along with wool socks.
If you show up in thin layers or shoes with weak traction, you’ll feel it. Iceland can be wet and cold even when the sky looks calm, and caves add their own chill and dampness.
The human part: the guide matters here
The cave portion is where a good guide really changes the experience. Caving isn’t just about seeing rock—it’s about understanding how the tunnel formed and how to move safely. People have specifically praised cave guides such as Dimitri for being both fun and informative, which is exactly what you want when you’re crawling through geology.
The Golden Circle part: Gullfoss, Geysir, and Þingvellir in one run

After the caving segment, you’ll switch tours at a set meeting point. You’ll have time to have lunch at the switching stop, and there’s a bakery and a supermarket there. Then the Golden Circle drive portion begins.
Even if you’ve done the Golden Circle before, the combo format can be a good way to get it done fast. You’ll still hit the big three stops in a single afternoon and come away with that classic Iceland mix: waterfall drama, geothermal action, and tectonic history.
Gullfoss Falls: short stop, big photo payoff
You’ll stop at Gullfoss, one of the most famous Golden Circle highlights. Your time here is brief (about 3 minutes listed), so treat it as a quick hit: arrive, find your vantage spot, take your photos, and move with the group. The waterfall is the kind of place where conditions can change quickly—mist, wind, and light—so you don’t want to waste your time hunting around.
It’s also the kind of stop that rewards being prepared. If you want the best shots, wear water-resistant layers and bring a plan for your camera or phone in spray.
Geysir and Strokkur: when you want the geyser show
Next up is Geysir with a stop at Strokkur. This part is about an hour. The main draw is seeing geysers spout—geothermal drama on a schedule that’s less “calendar” and more “watch and wait.”
Because this is Iceland, the ground can be slippery and steam can reduce visibility. Stay aware of footing and follow your guide’s cue on where to stand. If you’re hoping to catch a spout right as you arrive, don’t fixate on timing too hard; spend a few minutes getting situated first, then let the geyser do its thing.
Þingvellir National Park: two tectonic plates in the same frame
Your last Golden Circle stop is Þingvellir National Park (about 30 minutes listed). This is where you get a real sense of how the Earth is changing right where you’re standing. The tour highlights that this is where the two tectonic plates meet.
Even on a shorter stop, you can still do something meaningful: walk a bit, look at the cracks and formations, and enjoy the feeling of standing in a place that’s both scenic and geologically significant. It’s not just a viewpoint—it’s a “you are in the story of the planet” kind of stop.
The practical note: since your time is limited, don’t wander off on your own. This is one of those places where the best experience comes from seeing the right viewpoints without running out of time.
Reykjavik pickup and the small-group reality (capped at 19)

This tour is built for convenience. You get Reykjavik pickup and drop-off, and the group is kept small, with a maximum of 19 travelers. That matters. With smaller groups, your guide can actually manage flow—especially during caving, where people need time to gear up and move safely.
Pickup rules: know them before you plan your morning
Pickup is offered, but not from everywhere. Due to traffic restrictions, the tour can’t pick up from hotels in the city center or from private Airbnbs. Pickup is served only from specific locations listed by the operator, and you’re asked to walk to the closest pickup point if your exact address isn’t on the list.
This is one of the most important “value” factors in the day: if you have to walk a long way in cold morning weather just to meet the bus, the tour can start feeling less convenient. Before you book, check the pickup list and pick a plan that minimizes walking.
Start time and how to not miss the bus
You start at 8:00 am. That’s early by Reykjavik standards, so aim to be ready a bit ahead of your pickup window. Late arrivals can throw off the whole rhythm, especially when the first activity is underground and there’s gear involved.
Why the included caving gear and Wi‑Fi actually help

A lot of tours say they’re inclusive, but you still end up paying or preparing yourself. Here, caving equipment is included. That means you don’t have to guess what you need for your underground session.
Also included: professional guide time for both parts of the day, plus free Wi‑Fi on board. Wi‑Fi sounds small, but on a long day with driving and waiting, it helps you map your photos, confirm plans, or just keep your family entertained without eating up your phone battery.
The tour also has a mobile ticket, which is handy. In Iceland, that’s one less thing to juggle in the cold.
Food, timing, and the combo-tour trade-off

Food is not included, and there’s no lunch provided. Instead, the tour schedules a lunch break at the switching point between the caving and Golden Circle parts. There’s a bakery and a supermarket there, so you can grab something quick—sandwiches, snacks, drinks, whatever works for your pace.
Here’s the trade-off you should plan around. Because this is a combo day, you don’t get unlimited time at each Golden Circle stop. A dedicated Golden Circle tour often gives you more breathing room. This one is efficient, but it’s not meant for slow traveling.
So ask yourself: do you want maximum time at each postcard site, or do you want one well-packed day that covers the big highlights plus something most people don’t do—actual lava cave caving?
If your top priority is the cave, this combo works very well. If your top priority is taking your time at the Golden Circle sites, you might feel slightly rushed by the schedule.
Price and value: what $203.87 covers for this 10-hour day

At $203.87 per person, you’re paying for more than transportation. You’re paying for:
- a small group format (max 19),
- hotel pickup and drop-off within the allowed pickup zone,
- a professional guide for the cave portion,
- caving equipment,
- the lava tunnel admission included in the morning,
- the Golden Circle routing with stops like Gullfoss, Strokkur, and Þingvellir.
In value terms, this can be a strong deal because the most complicated part—caving logistics—has the gear and guide handled for you. If you tried to plan lava cave time and Golden Circle transportation separately, you’d likely spend extra on setup and coordination.
Is it the cheapest option? No. But if you’re coming for both the cave experience and the Golden Circle landmarks, you’re getting a lot packed into the day without the headache of arranging two separate tours.
Who should book this tour (and who should choose differently)

You’ll probably love this tour if:
- you’re short on time in Reykjavik and want a true day-trip hit,
- you want a hands-on Iceland experience, not just driving and walking,
- you like small-group pacing,
- you’re okay with early timing and limited stop durations.
It might be less ideal if:
- you hate tight schedules and want long photo stops at every Golden Circle site,
- you’re not comfortable crawling or walking through underground passages,
- your pickup location forces a long cold walk to meet the bus.
Also, the tour notes that most people can participate, and service animals are allowed. If you’re unsure about your comfort underground, focus on the clothing and footwear advice. Good traction and warm waterproof layers make the whole experience easier.
FAQ
How long is the tour, and when does it start?
It runs about 10 hours and typically starts at 8:00 am from your pickup location.
Is lunch included?
No. Food and drinks are not included. There’s time to eat at the switching point between the caving and Golden Circle parts, with a bakery and a supermarket available.
Do I need previous caving experience?
No previous experience is required. You will still need to crawl or walk through underground passageways.
What should I wear for the lava tunnel?
Bring warm outdoor clothing, a waterproof jacket and pants, plus headwear and gloves for the cave. Sturdy hiking shoes and wool socks are recommended.
How big is the group?
This is a small-group tour with a maximum of 19 travelers.
Does the tour pick up from any hotel in Reykjavik?
Pickup is only available from specified pickup points. Due to traffic restrictions, hotels in the city center and private Airbnbs aren’t eligible. If your address isn’t listed, you’ll be asked to walk to the closest pickup point.
Should you book this Lava Tunnel and Golden Circle small-group tour?
If you want one packed day that gives you both the rare experience of Raufarhólshellir lava caving and the classic Golden Circle highlights, this is an easy yes. The included gear, small group size, and guided cave morning make it feel like more than a basic sightseeing loop.
Book it especially if your schedule is tight and you’re excited by the idea of getting underground. Just be honest with yourself about the combo format: the Golden Circle time is limited because it has to fit around the cave, lunch, and switching tours. If you’re a linger-at-every-stop person, you may prefer separate tours for a slower Golden Circle day.
























