Dive in lava filtered water and walk where lava flowed

Our Dive Silfra & Lava Caving Tour is a great combination tour for those who want to make the most of their time in Iceland.

On this trip you will get to dive in one of the world’s most fantastic dive sites, Silfra, as well as go hiking through a lava tube that was created thousands of years ago by a river of red glowing lava.

Depending on the time of year and the weather, we will choose either the Gjábakkahellir cave in Thingvellir or the Leiðarendi cave, which is closer to Reykjavik.

Both caves are lava tubes that display the same typical features of this most common type of lava cave in Iceland.  The caves are full of utterly weird and wonderful rock formations as well as a splattering of amazing colors.

Please make sure to bring good shoes, as we will walk over very uneven ground.

Even though at some points inside the cave we will have to climb and crawl a little, this cave tour is an easy one that can be undertaken by everyone who feels comfortable in confined spaces and is fit to take a short hike.

You can read more about the Diving Silfra Tour here.

Note that snorkelers and divers can join on the caving portion of the tour together.

Tour Details


All year around.

See our guaranteed departures in the booking calendar (click on BOOK NOW below).
We might do other departures on request.

This tour is also available as the Snorkeling Silfra & Lava Caving Tour. Divers and snorkelers can do it together.


Participants must:

  • have a Scuba dive certification (PADI Open Water or equivalent)
  • be physically fit
  • be ready to wear a sometimes tight & constricting dry suit
  • not be pregnant
  • feel comfortable in confined spaces
  • be at least 18 years old
  • All participants age 60 or older and all participants under a doctor’s care for any ongoing medical condition must have our medical form signed by their physician.

Dry suit diving experience is recommended.


7-9 hours

Min / Max:

For your safety and convenience we conduct this tour with a minimum of 1 and a maximum ratio of 4 divers per dive guide.

On the lava caving part of the tour can be a maximum of 8 participants per guide.

Please bring:
  • Long underwear
  • thick socks
  • suitable clothes for the weather of the day
  • good shoes (e.g. hiking boots)
  • warm clothes for caving
  • Free hotel pick up and return
  • guided dive in Silfra
  • guided cave tour
  • all necessary equipment
  • hot choclate and cookies between Diving in Silfra and Lava Caving
  • entrance fee of ISK 1.000,- into Silfra

Please see our booking calendar below for available departures.


Book this tour now!


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Caver in Leiðarendi Cave, Iceland © David Sigurthorsson

Snorkel Silfra & Lava Caving Combo

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