At the car park of Raufarhólshellir on the side of the road (816, Iceland)
Visit an ancient underground lava tube cave where we will see awe-inspiring rock formations with our snorkeling in Þingvellir. This Iceland snorkeling and caving tour allows you to experience the country from a new angle. We start the day with the black part of the tour by exploring a lava tube cave close to Reykjavík. We will head to Raufarhólshellir, one of Iceland's longest lava tube caves. This adventure gives you great insight into the volcanic activities that have formed the country. After caving, you will have a chance to grab some lunch between the two activities. Next, we will meet you at Þingvellir National Park, where the Silfra fissure is found. Here we will put on our dry suits and get ready to explore the blue. Witness some of the clearest water on Earth as your guide leads you on a fascinating underwater journey.
Meeting place: at Raufarhólshellir
Meeting time: 15 minutes before departure
Car parks nearby: within a 5 minute walk (paid and free)
Certified guide
High-quality snorkeling gear (wetsuit, mask, fins, snorkel)
Access to changing facilities and showers
Hot chocolate and cookies
Underwater photos
Minimum age: 12 years
Minimum age to participate alone: 18 years
Swimsuit
Towel
Change of clothes
Warm undergarments
Woolen socks
Not suitable for toddlers, pregnant women and the elderly
Not suitable for people with bad heart conditions
Please fill in the medical statement form that you will receive in your confirmation email and send it to us. If you have any medical issues, you will need to get medical approval from a doctor.
The minimum age for this activity is 12 years. Participants must be at least 18 years old to join without an adult.
You should bring a swimsuit, a towel, a change of clothes, warm undergarments, and woolen socks.
Yes, high-quality snorkeling gear including a wetsuit, mask, fins, and snorkel is provided.
This tour is not suitable for pregnant women, the elderly, or people with bad heart conditions. You will need to fill in a medical statement form, and if you have any medical issues, you must get approval from a doctor.
The tour includes a visit to the Raufarhólshellir lava tube cave and a snorkeling tour in the Silfra fissure. A certified guide, all necessary snorkeling gear, access to changing facilities, hot chocolate, cookies, and underwater photos are also included.
The meeting point is at the Raufarhólshellir cave. You should arrive 15 minutes before the scheduled departure time.
Hot chocolate and cookies are provided during the tour. You will have a chance to buy your own lunch between the caving and snorkeling activities.






The activity Snorkeling and Caving Tour in Silfra Fissure with Snacks & Photos by Arctic Adventures Iceland in Raufarhólshellir is available on Tuesday, Thursday, and Saturday, from August 17, 2026 through December 29, 2026. On each available day there is 1 start time at 9:30. Sessions last 6 hours and are offered as group activities. Prices start from €145.00 for kids and €179.00 for adults.





