Silfra and caving - two perfect stops on the golden circle!

In just a few hours you will snorkel or dive in Silfra between two continental plates and take a walk through a tunnel created by the flow of glowing lava. You do not want to miss seeing the unique scenery on these adventures — it’s like nothing else on earth! These tours are a great addition to your self-drive Golden Circle tour or visit to Thingvellir Park.

The lava cave system you will visit is called Gjabakkahellir. According to folklore, the caves are entrances to the ninth world or Niflheimar.

At some points inside the cave we will have to climb and crawl a little, but this cave tour can be undertaken by everyone who feels comfortable in confined spaces and is fit to take a short hike. Please make sure to bring good shoes.

This is a perfect combination adventure for you if you want to get a truly in-depth view of our beautiful landscape and make the most of your day. You can read more about the Silfra Snorkeling tour here.

The schedule for this combination tour is as follows:

10:00: Snorkeling Silfra Tour –  meet us at Silfra parking lot.
13:00: Pick up at the Silfra parking lot for the caving tour at Gjábakkahellir. The cave is a short 20 minute drive, but it is not possible to drive there in a normal street car.
15:00-16:00: Drop off at the Silfra parking lot after the caving tour.

Tour Details


Daily departures during summer months


Participants must:

  • have read, signed, and followed directions on the Snorkeling Silfra Medical Statement
  • sign our liability release form at the start of the tour
  • be at minimum 150cm tall / maximum 200cm tall
  • be at minimum 45kg / maximum 120kg
  • be minimum 14 years of age
  • be comfortable in water and be able to swim
  • be physically fit
  • be ready to wear a sometimes tight & constricting dry suit
  • be able to communicate in English or have a translator available at all times during the tour
  • not be pregnant

Please note:
Participants are not allowed on tour without signing the Snorkeling Silfra Medical Statement and, if necessary, a physician’s approval which can be found with the Medical Statement.

Please read the Snorkeling Silfra Medical Statement prior to booking to make sure that you are eligible for the tour.


approx. 5 hours

Min / Max:

Maximum of 6 participants for snorkeling, 8 for caving

Please bring:
  • Long underwear
  • thick socks
  • suitable clothes for the weather of the day
  • good shoes (e.g. hiking boots)
  • warm clothes for caving
  • contact lenses if you wear glasses
  • Highly trained snorkeling guide and caving guide
  • guided snorkeling trip
  • guided cave tour
  • all necessary equipment
  • hot chocolate and cookies between Snorkeling in Silfra and Lava Caving
  • entrance fee of ISK 1.000,- into Silfra

Transportation to Thingvellir National Park


Please see booking calendar below for available tour times. Please note that this tour is self-drive only.

Book this tour now!