menu mask tank instagram facebook tripadvisor

Dive Kleifarvatn – Geothermal Lake

      • Duration

        5 – 6 hours

      • Depending on time of year and weather conditions.

      • Certificate required


      • PADI Open Water or equivalent certification along with Dry suit certification or 10 logged Dry Suit Dives within the last two years.

  • 39.900 ISK
    Book here

Dive Kleifarvatn – Geothermal Lake

The tour includes

  • Two dives in Kleifarvatn
  • Free Reykjavik hotel pick-up and return
  • All equipment
  • Experienced guide
  • Hot chocolate and cookies
  • Lots of fun!


Freshwater bubbling craters!
Kleifarvatn is the largest lake on the Reykjanes peninsula and is very unusual: it doesn’t have surface water entering or leaving the lake and no rivers in or out. All of the water entering and leaving the lake does so from the ground.

After a large earthquake in 2008, a crack formed at the bottom of the lake and the water started to drain away, the lake lost 20% of its surface volume. This has since recovered but when you dive the bottom of the lake you can see bubbling craters and vibrating rocks as you dive. The bottom of this lake looks alive, moving, shaking and bubbling away!

Minimum requirements for diving:
A minimum age limit of 18. Drysuit certified with proof of a minimum of 10 drysuit dives. This tour is for the more experienced cold water diver that has good buoyancy control and that you are able to hover through the dive as the lake floor here is very fragile.

Difficulty: Demanding.
This tour involves a little hiking with your equipment due to the remote location.

Weather can affect access to this lake, we have backup diving places in other lakes if we can’t gain access here.

Please bring:
Your Dry Suit Diver certification or equivalent from any recognised diving organisation. Without your certification you are not allowed to dive. Bring good warm long underwear and thick socks to wear under the dry suit.


 This is a truly unique and beautiful site surrounded by red volcanic mountains and geothermal hot springs. Diving this lake is like entering an underwater Jacuzzi where you will be surrounded by thousands of tiny bubbles coming up from the ground.

Before you enter the water you can see and smell the sulphur deposits on the lake floor and see the gas ascending from underneath the ground. After a few minute swim we will reach the underwater hot springs. You will know for sure that your guide have taken you to the right place when you feel the ground vibrating as the gas bubbles surround you.

But this is also a spooky site, the story says that a monster in the shape of a worm and size of a whale lives in the lake, so don’t forget to bring your camera on the dive!

After the dive we will take you to the nearby geothermal area of Krysuvik and Seltún. There you will get to see lots of boiling mud, and smell some more sulphur.

Maximum diving depth on this tour is usually 18 meters.

Definitely a must-do
A truly unique and amazing experience! The guides were professional, organised and knowledgeable, and everything ran smoothly.

Samit K – May 29, 2016