Caving Tour and the Blue Lagoon - EI61

Combo day tour from Reykjavik

We go caving and then afterwards you can relax in the famous Blue Lagoon, this caving tour is highly recommended for speleologists as well as amateurs. Join us on this adventure exploring the rare world of lava tubes, formed when boiling hot magma continued flowing into tunnels of already petrified lava.

Duration: Flexible

Pick-up: 09:00 - 09:30

Group maximum: 12 persons

Available: All year

Age limit: 6 years

Difficulty: Moderate*

Tour Highlights:
  • Lava tube cave
  • Reykjanes peninsula
  • Blue Lagoon geothermal spa

Switching point:

After the caving tour we drop you off at a switching point in Reykjavik (at BSI Bus Terminal). You will some time to have lunch, there is a cafeteria there but you can also bring packed lunch. There is also a gas station nearby.
Then at 13:00 we depart for the Blue Lagoon from BSI Bus Terminal.


Able to crawl and walk on uneven surface.


Reykjavik pickup & drop-off, guided caving tour, torch, gloves, helmet and a separate transfer to the Blue Lagoon (and back). You can choose to return to Reykjavik or be dropped off at the airport.

Bring with you:

Warm clothes, sturdy shoes/boots, bathing suit and towel.

Not included:

Lunch and the Blue Lagoon admission fee. Blue Lagoon admission must be booked separately on, before the tour, please note that the lagoon can be quite busy so please check for availability beforehand. The transfer time to the Blue Lagoon is flexible.


The group maximum for the caving tour is 12 persons. The transfer to the Blue Lagoon has no group maximum.

Image gallery for the caving tour.

12 990 per adult

Children (6-12): 25% off

The bathing admission to the Blue Lagoon is not included in the price. We recommend booking in advance at

If you are staying downtown Reykjavik please read this information about pickup.

 Booking engine



Blue Lagoon - Flexible duration

Just inform the bus driver of your transfer of which return departure suits your needs. You can even have dinner at the restaurant or at the café, or you can go to the Lagoon Bar.

Departure times from the Blue Lagoon (back to Reykjavik):

15:15 ~ 16:15 ~ 17:15 ~ 18:15 ~ 19:15 ~ 20:15 ~ 21:15 ~ 22:15

More information about the return transfer will be stated on your voucher.

Tour Description

caving iceland

Extreme Iceland guide in the Leiðarendi Cave

We will enter through narrow cave entrances and find they reveal extraordinary scenery of lava formations and colors. You will also see natural stalactites and many different rock formations making this a majestic and almost indescribable experience. The caves become wide and high in places with an even floor, however, the trip can also be rather difficult in places. We recommend you wear good walking shoes or hiking boots which are suitable for walking on uneven lava surfaces.

Lava Tube Cave Leidarendi

Cave Leidarendi is about 900 meters long and situated in a lava field near a volcanic crater southeast of the town of Hafnarfjordur. It was first mapped in 1992. The cave's name translates as "End of the Journey" and was so named because of the carcass of a dead sheep which lies at the far end of the cave, where it reached its End of the Journey. It obviously fell into the cave through a shakehole and was not able to climb out.

lava formation iceland

Here's a peculiar lava formation called 'The Rose'

Respect for nature and safety are our main concerns. There are no handrails, lights or any tools installed in or around the caves. We rely completely on the equipment we carry and it is important that people respect our guidelines. This tour is suitable for all who can walk on uneven surfaces and at times, on all fours.

Stori-Bolli is a rather handsome crater (about 150 metres in diameter) south-south-east of the town of Hafnarfjordur. From Stori-Bolli crater came the namesake lava field, Stora-Bollahraun and in it was the lava tube Leidarendi created. It only takes 25-30 minutes to drive to the cave from Reykjavik and the cave's entrance is just a short distance from the road.

end of journey lava tube cave

Carcass of a sheep who met the End of the Journey hundreds of years ago

The entrance to cave Leidarendi is a small pit that leads down into the cave; the cave itself runs in two directions and connects in two parts so it runs in a circle. The cave's ceiling and walls are broken or collapsed in very few places and it is therefore easy to navigate. Although sometimes the cave’s ceiling gets a bit low and at times you might have to crawl for a short distance.

After we have finished exploring the cave we will head back to Reykjavik.

blue lagoon iceland

Blue Lagoon geothermal bathing spa

The Blue Lagoon Geothermal Spa

After the caving experience we drop you off at a switching point downtown Reykjavik. You will have some time to have lunch, before a separate transfer to the famous geothermal spa of the Blue Lagoon.

The warm waters are rich in minerals such as silica and sulfur and bathing in the Blue Lagoon is reputed to help some people suffering from skin diseases. Indeed, the attached Blue Lagoon Clinic is an internationally recognized psoriasis treatment centre. The water temperature in the bathing and swimming area of the lagoon averages 37-39 °C.

The Blue Lagoon is fed by the water output from the nearby Svartsengi Geothermal Power Plant and is completely renewed every 2 days. The water in the lagoon is used for both recreational and medicinal bathing.

Please note that the fee into the bathing area in NOT included in the tour price.

Disclaimer: All our tours are undertaken on the responsibility of its participants. Extreme Iceland does not assume any responsibility for accidents that are caused by its customers or can be traced to their own actions.

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