Explore the Raufarhólshellir Lava Tunnel & snorkel the Silfra Fissure on this uniquely Icelandic geological odyssey | Free Underwater Photos & Hot Coco!

Tour Highlights:

• Explore the Raufarhólshellir Lava Tunnel & witness the inner workings of an eruption that occurred over 5000 years ago
• Marvel at the colours & intricate formations within the lava tube and learn about the geological processes that created this underground wonder.
• Snorkel between the separating North American and Eurasian tectonic plates – a geological marvel only found in Silfra
• The Silfra Fissure is located in the stunning Þingvellir National Park, a UNESCO World Heritage Site only 45 minutes from Reykjavík
• Experience the clearest waters in the world! The glacial water originates from Langjökull (Long Glacier) and is naturally filtered through lava fields, resulting in some of the purest water on Earth,with an incredible visibility of up to 150 meters.

Meet on Location – Self-Drive Combo Tour

This is a self-drive combo tour. You’ll meet us directly at each activity location:

1. First Stop: Raufarhólshellir Lava Tunnel
   Tour Time: 9:30 AM. Please arrive at least 15 minutes early for check-in.
2. Second Stop: Silfra Snorkeling in Þingvellir National Park
   Meeting Point: Silfra car park
   Tour Start Time (varies by season)
   → WINTER (September 1- May 14) 1:30pm
   → SUMMER (May 15-August 31): 2:00 pm 
   Please arrive in the Silfra Car Park at least 15 minutes before the start time. 

Where to park for Silfra: Type “Thingvellir Parking P5” into Google maps, and it will give you directions to where you can park your car, which is the 2nd car park 400m further along the road to where you will be snorkeling from. Make sure you plan to allow enough driving time. We advise you to check out the weather and the road conditions before you leave.

• English speaking tour guides
  • Certified PADI divemaster
  • Expert caving guide
• All necessary snorkeling & saving gear and safety equiptment
• All necessary specialized caving gear including helmet and headlight.
• Thingvellir National Park admission fee
• Hot chocolate & cookies to warm up after snorkeling
• Free underwater photos taken by your guide

• This is a combo of two tours: Snorkeling in Silfra  and the Lava Tunnel .
• Guests must read and sign the medical statement form in our Snorkeling Handbook. If you have a listed medical condition, approval from a doctor is required
• Participants need to be comfortable in the water and able to swim
• It is crucial that guests can both understand and communicate in English to participate in the tour
• This tour is not suitable for pregnant people due to the small risk of cold water entering the suit
• Dry suit sizes: Our gear is limited to standard sizes available on the market, and it’s crucial that guests fall within the specified size parameters. This ensures the safety equipment fits properly, keeping you warm and protected in the glacial waters. For your safety and comfort, please confirm that you meet the required sizing guidelines:
  • Weight: 99-265 lbs (45-120 kg)
  • Height: 4'11" – 6'7" (150-200 cm)
• Snorkeling masks cannot accommodate glasses. If you do not have a prescription mask of your own, please arrange to use contact lenses

Participants are responsible for reviewing our Snorkeling Handbook before the tour. The handbook contains important medical and safety information. If guests do not meet the requirements for safe participation, we are unable to accomodate them on the tour. 

• A 100% charge applies if canceled within 1 days of the start time.
• Free cancellation up to 365 days before the start time.