Dive Silfra and go caving in one day!

On this combination tour we’ll take you diving between two continental plates and then on 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! The bright summer nights give you plenty of time to continue exploring the Golden Circle area after these tours if you wish.

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 Diving tour here.

The schedule for this combination tour is as follows:

08:00: Diving 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.

Please note that this is a self-drive tour. Transportation to Silfra is not available.

Tour Details


Summer months

See our guaranteed departures in the booking calendar (click on BOOK NOW below)

This tour is also available for snorkelers meeting at 10:00 at Silfra


Participants must:

  • be a certified diver at the level of PADI Open Water or equivalent
  • have dry suit diving certification and a logged dry suit dive within two years of the tour date
    have at least 10 logged dry suit dives within two years of the tour date and be able to provide written proof from a diving instructor of these dry suit dives
  • have read, signed, and followed directions on the Diving Silfra Medical Statement (to be signed online after booking)
  • be at minimum 150cm / maximum 200cm
  • be at minimum 45kg / maximum 120kg
  • be at minimum 17 years of age (signature of legal guardian required for under 18 year old participants)
  • 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



7-9 hours

Min / Max:

We conduct this tour with a minimum of 1 and for your safety and convenience a maximum ratio of 3 divers per dive instructor.

Please bring:
  • your SCUBA dive certification card (PADI Open Water or equivalent)
  • proof of dry suit certification or 10 logged dry suit dives within two years of tour date
  • long underwear
  • thick socks
  • suitable clothes for the weather of the day
  • good shoes (e.g. hiking boots)
  • warm clothes for caving
  • 2 guided dives 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

Transportation to Thingvellir


Please see our booking calendar below for available departures.

Book this tour now!