Geological Lava Tunnel Adventure - Arnarker Cave

5 hours, from $209, admission not stated. 5.0 from 7 ratings. What Geoadventures ehf commits to, what stays open and what is added to the price.

GYG

Geological Lava Tunnel Adventure - Arnarker Cave

★ 5.0(7 reviews)
  • Pickup from your hotel
  • Guide works in English
  • Duration per the operator: 5 hours

A five-hour ride into the lava tube

This tour takes you from Reykjavik to Arnarker Cave, a lava tunnel shaped by an eruption long before the city existed. You are picked up at your hotel in the capital and driven to the cave entrance, where a guide leads the small group through the passage. The whole trip runs five hours, door to door, which makes it a half-day commitment rather than a full one. It suits travellers who want to see what lies under Iceland's surface without spending an entire day away from the city. The group is kept small, so you are not trailing behind dozens of other visitors inside the tunnel. English is the language of the guiding, and the guide stays with you through the cave. The tour is priced from 209 USD per person, which places it in the middle of the volcano-tour market in Reykjavik. You do not need to arrange your own transport to the site, because the hotel pickup is part of what you pay for.

Geological Lava Tunnel Adventure - Arnarker CaveGeological Lava Tunnel Adventure - Arnarker CaveGeological Lava Tunnel Adventure - Arnarker CaveGeological Lava Tunnel Adventure - Arnarker CaveGeological Lava Tunnel Adventure - Arnarker Cave

Photographs from the operator Geoadventures ehf. They show the listing, not your day.

Operator
Geoadventures ehf
Duration
5 hours
Departure point
Reykjavik
Group form
small group
Guiding
Guide
In English
yes
Pickup from your hotel
yes
Price
from $209
Rating
5.0 from 7 ratings
Quality bar
not passed

What is included, what is not, and what the operator does not say

The catalogue distinguishes three states, and the third matters most: not stated does not mean excluded, it means unresolved.

ServiceStatusWhat that means for you
Admission to the sitenot statedadmission not stated
Pickup from your hotelincludedIncluded, the meeting point is where you are staying.
Food on the tournot includedNot included.
Admission to the site
Status
not stated
What that means for you
admission not stated
Pickup from your hotel
Status
included
What that means for you
Included, the meeting point is where you are staying.
Food on the tour
Status
not included
What that means for you
Not included.

What the price covers and what it does not

The entry price of 209 USD includes the guided walk through Arnarker Cave and the hotel pickup from Reykjavik. That pickup is a genuine part of the deal, not an optional extra. Food is not part of the package, so you should eat before you leave the city or bring something with you for after the walk. There are no admission charges or parking fees at any point on this itinerary, so the amount you see quoted is the amount you plan around. The operator offers free cancellation, though no deadline is attached to that offer. The tour is not wheelchair accessible, which matters if you or someone in your party has limited mobility. The cave itself involves walking on uneven ground, and the tour description does not promise any special equipment beyond what you would bring yourself. You will not need to buy anything at the cave entrance, because there is no ticket booth or gate fee waiting for you.

The price in context

The starting price of this tour against the 4 best-evidenced listings in the same category that publish one. The highlighted bar is this tour.

Geological Lava Tunnel Adventure - Arn…209 $
Reykjavik: LAVA SHOW - Immersive Exper…53 $
Reykjavík: Volcano Eruption Site and R…132 $
Reykjavík: Guided Afternoon Hiking Tou…132 $
From Reykjavik: Raufarhólshellir Lava …67 $

Prices are the lowest bookable option, not the one that will necessarily suit you.

The figures behind this chart, as a table
RowGeological Lava Tunnel Adventure - Arn…Reykjavik: LAVA SHOW - Immersive Exper…Reykjavík: Volcano Eruption Site and R…Reykjavík: Guided Afternoon Hiking Tou…From Reykjavik: Raufarhólshellir Lava …
Starting price209 $53 $132 $132 $67 $

This tour against 4 comparable ones

All 5 come from the category “Volcano and lava tours”. The column for this tour is highlighted; the others are the best-evidenced in the category.

Geological Lava Tunnel Adventure - Arnarker CaveReykjavik: LAVA SHOW - Immersive Experience Entry …Reykjavík: Volcano Eruption Site and Reykjanes …Reykjavík: Guided Afternoon Hiking Tour to New …From Reykjavik: Raufarhólshellir Lava Tunnel Tour
ProviderGeoadventures ehfIcelandic Lava ShowBusTravel IcelandBusTravel IcelandArctic Adventures
Pricefrom 209 $from 53 $from 132 $from 132 $from 67 $
Duration5 hours1.2 hours9 hours7 hours1 to 3 hours
Group typesmall groupgroupgroupgroupgroup
In Englishyesyesyesyesyes
Admissionnot statednot statednot statedincludednot stated
Pickupyesnot statedyesnot statednot stated
Rating (reviews)5.0 (7)4.7 (4,030)4.6 (1,154)4.4 (942)4.7 (852)
Quality floorbelow the floorabove the floorabove the floorabove the floorabove the floor
Free cancellation untilnot statednot statednot statednot statednot stated
Geological Lava Tunnel Adventure - Arnarker Cave
Provider
Geoadventures ehf
Price
from 209 $
Duration
5 hours
Group type
small group
In English
yes
Admission
not stated
Pickup
yes
Rating (reviews)
5.0 (7)
Quality floor
below the floor
Free cancellation until
not stated
Reykjavik: LAVA SHOW - Immersive Experience Entry Ticket
Provider
Icelandic Lava Show
Price
from 53 $
Duration
1.2 hours
Group type
group
In English
yes
Admission
not stated
Pickup
not stated
Rating (reviews)
4.7 (4,030)
Quality floor
above the floor
Free cancellation until
not stated
Reykjavík: Volcano Eruption Site and Reykjanes Hiking Tour
Provider
BusTravel Iceland
Price
from 132 $
Duration
9 hours
Group type
group
In English
yes
Admission
not stated
Pickup
yes
Rating (reviews)
4.6 (1,154)
Quality floor
above the floor
Free cancellation until
not stated
Reykjavík: Guided Afternoon Hiking Tour to New Volcano Site
Provider
BusTravel Iceland
Price
from 132 $
Duration
7 hours
Group type
group
In English
yes
Admission
included
Pickup
not stated
Rating (reviews)
4.4 (942)
Quality floor
above the floor
Free cancellation until
not stated
From Reykjavik: Raufarhólshellir Lava Tunnel Tour
Provider
Arctic Adventures
Price
from 67 $
Duration
1 to 3 hours
Group type
group
In English
yes
Admission
not stated
Pickup
not stated
Rating (reviews)
4.7 (852)
Quality floor
above the floor
Free cancellation until
not stated

The order follows the weight of evidence and not the commission. Every value comes from the same catalogue fields, so that the columns compare.

How many people have judged it?

The number of ratings per listing, the score in brackets. A score without the population behind it tells you nothing.

Geological Lava Tunnel Adventu… (5.0)7 ratings
Reykjavik: LAVA SHOW - Immersi… (4.7)4,030 ratings
Reykjavík: Volcano Eruption Si… (4.6)1,154 ratings
Reykjavík: Guided Afternoon Hi… (4.4)942 ratings
From Reykjavik: Raufarhólshell… (4.7)852 ratings

This site's quality bar sits at ten ratings. Below that is not a verdict, it is chance.

The figures behind this chart, as a table
RowGeological Lava Tunnel Adventu… (5.0)Reykjavik: LAVA SHOW - Immersi… (4.7)Reykjavík: Volcano Eruption Si… (4.6)Reykjavík: Guided Afternoon Hi… (4.4)From Reykjavik: Raufarhólshell… (4.7)
Ratings7 ratings4,030 ratings1,154 ratings942 ratings852 ratings

A perfect score with a thin base

The tour carries a 5.0 rating, but that score comes from only seven reviews. Seven people is not a large enough sample to tell you much about consistency. A single disappointed traveller would have dropped the score noticeably, and a single enthusiastic one could have lifted it just as easily. In the volcano-tour category, which holds 41 listings, this tour ranks 23rd by strength of evidence. That rank is not a judgement on the cave itself, it is a statement about how much public feedback exists. By price, the tour sits 22nd of 41, squarely in the middle of the range that runs from 24 to 4,028 USD. The rating is encouraging, but it should be read as a hint rather than a guarantee. With so few voices behind it, you are better off weighing the tour's structure, the small group, the pickup, the five-hour length, against what you want from a day out.

The day, stop by stop

The order follows the usual run of the day. Each stop names what is there and the figures behind it; everything else is in the data sheet.

  1. Pickup where you are staying

    The operator collects you; the stated duration counts from here, not from the first stop.

  2. Reykjavik

  3. Back to where you started

    Back to the full list

A place on this list is a stop, not a promise about how long you spend there.

Temperatures in Reykjavik across the year

Mean daily high and mean daily low per month. Two series, one axis; the points mark the warmest and the coolest month.

Daily highDaily low
-4161217Daily high, Jul: 14.9 degrees C15Daily high, Jan: 3.2 degrees C3Daily low, Jul: 9.1 degrees C9Daily low, Feb: -1.9 degrees C-2JanFebMarAprMayJunJulAugSepOctNovDec

There is little shelter at most of these sites. The figures are long-run outdoor averages and not a forecast.

The figures behind this chart, as a table
RowJanFebMarAprMayJunJulAugSepOctNovDec
Daily high3.2 degrees C3.3 degrees C4.2 degrees C6.9 degrees C10.1 degrees C13 degrees C14.9 degrees C14.1 degrees C11.4 degrees C7.6 degrees C4.7 degrees C3.3 degrees C
Daily low-1.7 degrees C-1.9 degrees C-1.3 degrees C1 degrees C4 degrees C7.2 degrees C9.1 degrees C8.6 degrees C6.2 degrees C2.7 degrees C-0.1 degrees C-1.6 degrees C

When the cave suits the season

Reykjavik's monthly temperatures climb from a January high of 3 degrees to a July high of 15 degrees, with lows hovering near freezing in winter and reaching 9 degrees in summer. The cave itself stays cold regardless of the month, so the season matters less for the underground part of the tour than for the ride to and from the site. In the winter months, from November through February, you are looking at highs of 3 to 5 degrees and lows around minus 2. The five-hour window means you are outside in that cold for a meaningful stretch, so warm layers are not optional. From June through August, highs of 13 to 15 degrees make the surface portion of the trip far more comfortable, though the cave interior will still feel cool against the summer air. The tour runs in daylight hours, and in midwinter the short days mean the five hours need to fit into a narrower window of light. In summer, the long daylight gives you more flexibility on timing.

The full data sheet

Everything below comes from the operator's own catalogue entry or from the sources named in the last column. Where a field is blank, the operator did not fill it in, and that is recorded as unstated rather than guessed.

Download the full table as CSV · 113 rows

Show all 113 figures
FactValueSource
The listing27
Operator's own titleGeological Lava Tunnel Adventure - Arnarker CaveGetYourGuide catalogue
OperatorGeoadventures ehfGetYourGuide catalogue
Product number537869GetYourGuide catalogue
Departure pointReykjavikGetYourGuide catalogue
Duration5 hoursGetYourGuide catalogue
Multi-daynoGetYourGuide catalogue
Starting price$209GetYourGuide, live check
Starting price in local currencyabout 25,321 ISKRate 121.15 ISK to the USD
Rating5.0 out of 5GetYourGuide, live check
Number of ratings7GetYourGuide, live check
This project's quality barnot passedOwn rule: at least 4.0 from at least 10 ratings
Rank within its category23 of 41 in “Volcano and lava tours”Own analysis, score weighted by the number of ratings
Admission to the sitenot statedGetYourGuide catalogue
Food on the tournot includedGetYourGuide catalogue
Pickup from your hotelincludedGetYourGuide catalogue
Kind of guidingGuideGetYourGuide catalogue
Guiding languagesEnglishGetYourGuide catalogue
Guide works in EnglishyesGetYourGuide catalogue
Bookable privatelynoGetYourGuide catalogue
Small groupyesGetYourGuide catalogue
Group form per the operatornot statedGetYourGuide catalogue
Priority entrynoGetYourGuide catalogue
Suitable for wheelchair usersnot statedGetYourGuide catalogue
Free cancellationyesGetYourGuide catalogue
Cancellation deadlinenot statedGetYourGuide catalogue
Basis in the cataloguenot statedOwn check of the catalogue fields
Operator's images5 photographsGetYourGuide catalogue
Reykjavik37
Population of Reykjavik (city proper)139,804Statistics Iceland
Population of the greater capital region253,230Statistics Iceland
Area of the city244 km2Wikipedia
City charter granted18 August 1786Wikipedia
Weather station for the climate figures belowReykjavík station (station no. 1), Icelandic Meteorological OfficeIcelandic Meteorological Office (Veðurstofa Íslands)
Average high in January3.2 °CIcelandic Meteorological Office
Average high in February3.3 °CIcelandic Meteorological Office
Average high in March4.2 °CIcelandic Meteorological Office
Average high in April6.9 °CIcelandic Meteorological Office
Average high in May10.1 °CIcelandic Meteorological Office
Average high in June13 °CIcelandic Meteorological Office
Average high in July14.9 °CIcelandic Meteorological Office
Average high in August14.1 °CIcelandic Meteorological Office
Average high in September11.4 °CIcelandic Meteorological Office
Average high in October7.6 °CIcelandic Meteorological Office
Average high in November4.7 °CIcelandic Meteorological Office
Average high in December3.3 °CIcelandic Meteorological Office
Average low in January-1.7 °CIcelandic Meteorological Office
Average low in February-1.9 °CIcelandic Meteorological Office
Average low in March-1.3 °CIcelandic Meteorological Office
Average low in April1 °CIcelandic Meteorological Office
Average low in May4 °CIcelandic Meteorological Office
Average low in June7.2 °CIcelandic Meteorological Office
Average low in July9.1 °CIcelandic Meteorological Office
Average low in August8.6 °CIcelandic Meteorological Office
Average low in September6.2 °CIcelandic Meteorological Office
Average low in October2.7 °CIcelandic Meteorological Office
Average low in November-0.1 °CIcelandic Meteorological Office
Average low in December-1.6 °CIcelandic Meteorological Office
Average annual precipitation875.9 mmIcelandic Meteorological Office
Daylight on the June solstice21.2 hGaisma (sun-path almanac)
Daylight on the December solstice4.1 hGaisma (sun-path almanac)
Main gateway airportKEFIsavia
Drive time from Keflavik Airport to downtown Reykjavik45 minFlybus (Kynnisferðir)
Single city bus fare (Strætó)690 ISKStrætó bs
One-way airport bus fare (Flybus, KEF to Reykjavik)3,999 ISKFlybus (Kynnisferðir)
Taxi fare from Keflavik Airport to Reykjavik22,500 ISKHreyfill (taxi cooperative)
Sources: Þingvellir National Park27
Park entry fee, adult0 ISKArctic Adventures
Parking fee, car (up to 5 seats)1,000 ISKÞingvellir National Park
Toilet fee0 ISKIceland Review
Visitor centre opening hours09:00-18:00 (Apr-Oct), 09:00-17:00 (Nov-Mar)Þingvellir National Park
Park access seasonGrounds open 24 hours, year-roundArctic Adventures
Visitor centre exhibition fee, adult1,200 ISKÞingvellir National Park
UNESCO World Heritage status since2,004UNESCO World Heritage Centre
Althing (Icelandic parliament) established930Þingvellir National Park
Year Althing stopped meeting at Thingvellir1,798Þingvellir National Park
National park established1,930Þingvellir National Park
Core protected area92.7 km2Wikipedia
Lake Þingvallavatn surface area84 km2Wikipedia
Lake Þingvallavatn, maximum depth114 mWikipedia
Tectonic plate drift rate2 cm/yearÞingvellir National Park
Silfra fissure water temperature2-4 CÞingvellir National Park
Silfra fissure, maximum diving depth allowed18 mÞingvellir National Park
Silfra diving/snorkeling park fee, per person1,500 ISKDIVE.IS
Campsite fee, adult per night1,800 ISKÞingvellir National Park
Campsite seasonSummer season Jun 1-Sep 15; Nyrðri-Leirar open year-roundÞingvellir National Park
Wheelchair accessibilityPaved and boardwalk paths from parking lots P1, P2, P4 and P5 reach the main sights; lot P3's path is steep and unsuitableGolden Circle Iceland
Safety warningSnow can hide cracks and rifts near the Öxará riverbank; visitors are told to stay on marked pathsÞingvellir National Park
Recent path closurePart of the Almannagjá gorge path closed evenings 18:00-23:00 through end of May for bridge repairsÞingvellir National Park
Öxarárfoss waterfall height12 mIceland Review
Þingvallakirkja church built1,859Iceland Review
Women executed at Drekkingarhylur drowning pool18Iceland Review
Road distance from Reykjavik47.6 km · Computed over the OpenStreetMap road network, not quoted from a tour operator. Driving only: no stops, no ferry, no winter closures, and a car rather than a coach that has to load forty people at every stop.OpenStreetMap road network, routed with OSRM
Driving time from Reykjavik47 min · Computed over the OpenStreetMap road network, not quoted from a tour operator. Driving only: no stops, no ferry, no winter closures, and a car rather than a coach that has to load forty people at every stop.OpenStreetMap road network, routed with OSRM
Sources: Geysir geothermal area22
Entry fee to the geothermal area0 ISKReykjavík Grapevine
Parking fee, car1,000 ISKReykjavík Grapevine
Access seasonOpen-air site accessible year-round, no gate or hoursEnvironment Agency of Iceland
Protected area size3 km2Environment Agency of Iceland
Protected as a natural monument since2,020Environment Agency of Iceland
Identified thermal features in the area364Wikipedia
Elevation110 mWikipedia
Strokkur eruption interval6-10 minWikipedia
Strokkur eruption height, typical15-20 mWikipedia
Strokkur eruption height, maximum recorded40 mWikipedia
Great Geysir, last known eruption2,016Iceland Review
Great Geysir, tallest eruption on record170 mWikipedia
Water temperature in the geyser conduit85-95 CWikipedia
First written record of Geysir13th centuryEnvironment Agency of Iceland
Land donated to the Icelandic nation1,935Environment Agency of Iceland
Recent change: footpath and safety projectCircular footpath and safety upgrade, phase one finished Sep 2024, full project due by end of 2025Environment Agency of Iceland
Safety warningStay on the marked paths and behind ropes; geyser water reaches 100C at the surface and can scald or killGuide to Iceland
Wheelchair accessibilityMain paths around Strokkur are level, compact gravel or paved and usable by wheelchair in good weather; the upper hill viewpoint has steps and steep sectionsGolden Circle Iceland
Historic royal visits marked by stone markersDanish kings Christian IX (1874), Frederick VIII (1907) and Christian X (1921) visited and are commemorated by carved 'king's stones'Environment Agency of Iceland
Origin of the English word 'geyser'Derived from Geysir, this valley's most famous spring; entered English usage in 1780Etymonline
Road distance from Reykjavik115.3 km · Computed over the OpenStreetMap road network, not quoted from a tour operator. Driving only: no stops, no ferry, no winter closures, and a car rather than a coach that has to load forty people at every stop.OpenStreetMap road network, routed with OSRM
Driving time from Reykjavik104 min · Computed over the OpenStreetMap road network, not quoted from a tour operator. Driving only: no stops, no ferry, no winter closures, and a car rather than a coach that has to load forty people at every stop.OpenStreetMap road network, routed with OSRM

Meeting the guide and entering the tunnel

Your day begins with the hotel pickup in Reykjavik, so you do not need to find a meeting point on your own. The guide drives the group to Arnarker Cave and leads you inside. The cave is not a staffed attraction in the way a museum is, there is no front desk or ticket window because no admission is charged. The guide is the person who manages the practical side of the visit, from parking to pacing the walk. The tunnel floor is uneven, and the temperature inside stays low, so sturdy shoes and a warm layer are worth having. The weather in Iceland can change quickly, and if rain or wind makes the surface walk difficult, the guide will adjust the plan. The five-hour duration includes the drive from Reykjavik, the time at the cave, and the return, so the underground portion is a solid block of walking rather than a brief stop.

Who should take this tour

This tour suits travellers who want a guided, small-group look at a lava tunnel without spending a full day away from Reykjavik. The five-hour length fits a day that also leaves room for other plans. It also suits anyone who does not want to rent a car or navigate Icelandic roads to reach a cave on their own. The hotel pickup removes that barrier. If you are short on time or want a quicker introduction to lava formations, the Raufarhólshellir Lava Tunnel Tour runs one to three hours and starts from 67 USD, which is a lighter commitment. If you prefer a longer day with more variety, the Volcano Eruption Site and Reykjanes Hiking Tour runs nine hours from 132 USD and covers surface landscapes as well as volcanic ground. This tour is not for anyone who needs wheelchair access, because the operator states that it is not wheelchair accessible. It is also not the cheapest option in the category, so if price is your main constraint, the shorter lava tunnel tour gives you a similar experience for less.

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The order follows how close a listing is to this one, not the commission. Ratings, prices and availability according to GetYourGuide, accessed on . Prices in US dollars; “from” is the provider's lowest entry price.

Common questions

Is admission included?

The catalogue does not say. Where the route is waterfalls and beaches there is nothing to pay; ask if it includes a paid attraction.

How long does the tour really take?

The catalogue gives 5 hours. That is the operator's own figure and covers the tour itself, not the time you spend getting to the meeting point.

Is there a guide who works in English?

Yes, the operator lists English as a guiding language. That is the operator's commitment, not a checked property of the person on the day.

Where do I find all the data on this tour?

In the data sheet on this page. It carries every field on the tour, on each place it visits and on the climate of the departure city, each with its source, and it downloads as a CSV.

Does this listing's rating mean anything?

No. 5.0 out of 5 from only 7 is not enough to draw a conclusion from, however high the score.

GYG

Geological Lava Tunnel Adventure - Arnarker Cave

Dates, remaining places and the current version of what is included are at the operator. This page reflects the state of the catalogue, not the state of this morning.

from $209
Ansehen

Sources

Every figure on this page comes from one of these sources. The running text does not name them, so that it stays readable; the data sheet carries the source in every row.

  1. 1
    GetYourGuide: Geological Lava Tunnel Adventure - Arnarker CaveTitle, duration, what is included, languages, cancellation deadline, stars, number of ratings and starting price.
  2. 2
    This project's exchange-rate record, partners/fx.json accessed 2026-09-07Prices are shown in USD as published, with an approximate ISK figure at the rate on the date given. The operator charges in its own currency.
  3. 3
    Statistics Iceland accessed 2026-09-07
  4. 4
    Statistics Iceland accessed 2026-09-07
  5. 5
    Wikipedia accessed 2026-09-07
  6. 6
    Icelandic Meteorological Office (Veðurstofa Íslands) accessed 2026-09-07
  7. 7
    Icelandic Meteorological Office accessed 2026-09-07
  8. 8
    Gaisma (sun-path almanac) accessed 2026-09-07
  9. 9
    Isavia accessed 2026-09-07
  10. 10
    Flybus (Kynnisferðir) accessed 2026-09-07
  11. 11
    Strætó bs accessed 2026-09-07
  12. 12
    Hreyfill (taxi cooperative) accessed 2026-09-07
  13. 13
    Statistics Iceland accessed 2026-09-07
  14. 14
    Wikipedia accessed 2026-09-08
  15. 15
  16. 16
  17. 17
    Arctic Adventures accessed 2026-09-07
  18. 18
    Þingvellir National Park accessed 2026-09-07
  19. 19
    Iceland Review accessed 2026-09-07
  20. 20
    UNESCO World Heritage Centre accessed 2026-09-07
  21. 21
    DIVE.IS accessed 2026-09-07
  22. 22
    Golden Circle Iceland accessed 2026-09-07
  23. 23
  24. 24
    Reykjavík Grapevine accessed 2026-09-07
  25. 25
    Environment Agency of Iceland accessed 2026-09-07
  26. 26
    Guide to Iceland accessed 2026-09-07
  27. 27
    Etymonline accessed 2026-09-07