Explore one of the longest lava caves in Iceland. Then discover the depths of Silfra Fissure, where underwater visibility stretches more than 328 ft (100 m). Finally, cap your day off with a breathtaking Northern Lights show!


  • Small Group Experience
  • Silfra Fissure
  • Þingvellir (Thingvellir National Park)
  • Snorkeling Tour in Silfra
  • Volcano Cave Tour in Iceland
  • Northern Lights Tour and photos in Iceland
  • Free snorkeling photos

This adrenaline-filled combo tour is perfect for nature lovers. Start your day at one of the oldest lava caves in Iceland, Raufarhólshellir. Continue to explore the crevasses of Icelandic terrain on a snorkeling tour of Silfra Fisssure, rated one of the top 5 activities in the world by TripAdvisor. Then journey into the Icelandic backcountry for the magnificent Northern Lights!

Our guides know the best spots to see the aurora. They’ll snap free pictures of you with the Northern Lights in the background on this tour package.

  • Personal Experience
  • Trusted Tour Operator
  • Small group experience
  • Expert guides
Availability Sept-Apr
Duration ~13 hours
Departs From Reykjavik
Level Moderate
Minimum age 12 years
Meet on Location No
Pick Up Yes


Per Participant
  • Flexible cancellation up to 24 hours
  • Fast & secure payment
  • Best Price Guarantee

What's included


  • Pick-up & drop off from Reykjavík
  • Certified PADI Dive guide / Divemaster
  • Expert Caving Guide
  • All Necessary Snorkeling & Caving Gear
  • All Necessary Safety Equipment
  • Silfra Admission Fee
  • Hot Chocolate & Cookies
  • Free WiFi on Board Your Bus
  • Northern Lights Photos taken by your guide
  • Free snorkeling photos taken by your guide

What to bring

  • Thermal long underwear
  • Warm and waterproof outdoor clothing
  • Hiking boots
  • Gloves
  • Warm socks
  • A change of clothing (just in case)
  • It’s good to have a tripod for your camera on the Northern Lights hunt

Not Included

  • Meals

Contact us for more Information about this tour



Your journey into the depths of the Earth starts when we pick you up from your chosen location in Reykjavik. We then take you on a short drive through the scenic Icelandic backcountry towards Raufarhólshellir, one of the longest lava tunnels in Iceland.

This exquisite lava tube tunnel was formed during the Leitahraun eruption some 5200 years ago. Walk along paths formed by piping hot lava and discover colorful minerals, stalactites, and, in winter, icicles hanging over your head!

Raufarhólshellir Lava Cave is a whopping 0.87 mi (1.4 km) long, around 32 – 98 ft (10 – 30 m) wide, and 32 ft (10 m) high, so you’ll have plenty of space to walk around and take breathtaking photographs!

Next, we’ll grab lunch and head toward Þingvellir National Park. Spend your afternoon at Silfra Fissure in the heart of Thingvellir National Park.  Silfra has been rated as one of the best freshwater snorkeling sites in the world.

Once on site, our guides will help you get into your dry suit and all other safety equipment, like goggles, breathing tubes, and fins. The guides are all PADI certified, so you can enjoy your snorkeling experience without any worries. Once everyone is suited up, we’ll enter the underwater world of Silfra. 

Snorkeling between two tectonic plates should be at the top of everyone’s bucket list. The underwater visibility in Silfra stretches around 328 ft (100 m). While the crevasse doesn’t look like much on the outside, once you enter the depths it will take your breath away. The stunning ridges, crevasses, and unique rock formations will make you never want to return to land. 

After your exhilarating snorkeling adventure, we’ll take you back to Reykjavik to have dinner and relax before the Northern Lights hunt begins! At around 8.30 p.m. we’ll pick you up again and drive you far away from the city lights. 

The aurora is most visible away from light pollution and under the starry Arctic sky. While it’s almost impossible to predict exactly where the aurora will show up, our experienced guides know how to interpret the latest forecasts and will determine the best viewing areas on the spot. Your journey might take you to Thingvellir, Reykjanes, Hvalfjörður, or any other place far from artificial light. 

The Northern Lights are only visible in places close to the Arctic Circle, making Iceland one of the best spots to see them. Once on site, look upward to see saturated hues of green, yellow, and, on rare occasions, blue, rose, and red dancing in the night sky.

We will pick you up and drop you off at your chosen location in Reykjavík. The pick-up time is 8 a.m. Picking everyone up can take up to 30 minutes, so your patience is greatly appreciated! For the Northern Lights adventure, we’ll pick you up again from your chosen location in Reykjavik at 9.30 p.m. (September, March, April) or at 8.30 p.m. (October – February).

Available pick-up points: Arctic Adventures’s pick-up list.

You need to feel comfortable in the water and be able to swim.

Weight limit: 45-120 kg

Height limit: 150 cm -200 cm

Age Limit: 12 years old minimum. Guardian’s approval needed for minors under 18.

Please note that pregnant women are not able to participate.

The success of the Northern Lights tour depends on weather conditions and we reserve the right to cancel the Northern Lights part of the tour before 6:15 p.m. on the day of the tour. If this happens, we’ll refund your money for the Northern Lights tour. If the tour does go ahead and no Northern Lights are seen, we will offer you the chance to join another evening’s departure free of charge depending on availability.


All relevant information for the tour can be found in our snorkelling handbook.

Yes, you can bring a camera, but we recommend to have a waterproof one if you want to have it in the water with you.

If you plan to drive and meet us on location, the meeting point is at the Silfra car park, in Thingvellir National Park.

GPS: 64°15’23.508″N 21°6’58.676″W

Note that the National Park charges a small parking fee of 500 ISK.

We kindly ask you to be at the Silfra car park 15 Minutes prior to your tour starts.

No. Unfortunately, glasses don’t create a seal between your face and the mask. We recommend wearing contact lenses instead.

You are not able to participate in the snorkelling tour if you are pregnant.

Yes, the tour is directed in English and therefore you need to be able to understand English to participate.

Some snorkelling tours match with a dive tour, and then you will be in the same area at the same time. You will, however, be in separate groups with separate guides, and won’t be in the water exactly at the same time.

You need to be more than 12 years old. Participants under the age of 18 must be accompanied by a parent or adult guardian booked on the same tour.

You need to know how to swim independently. Because of the dry suit sizes, there are height-weight limitations. The minimum height is 150 cm, and the minimum weight is 45 kg. The maximum height is 200 cm, and the maximum weight is 120 kg.

All participants must have read and followed directions in the Snorkeling in Silfra Handbook

The minimum height is:
  • 150 cm (4’9)
The minimum weight is:
  • 45 kg (99 lbs)

The maximum height is:
  • 200 cm (6’5)
The maximum weight is:
  • 120 kg (265 lbs)

Yes, you must be able to swim independently without a lifejacket, and you must be comfortable in the water.

When snorkelling in Iceland you will be wearing a dry suit, hood and gloves made of neoprene, along with fins, mask and snorkel. This equipment will make it not only possible but also very enjoyable, to stay in the water despite the low temperature. It is a fantastic experience.

No, you don’t need any previous experience to snorkel, but it is important that you can swim independently and that you are comfortable in the water.

Please wear or bring some long underwear and some warm socks. Wool or fleece is the best material to wear. You will be wearing your long underwear and warm socks under the dry suit.

We provide dry suits so that your body stays dry, and you will also wear undergarments to keep you warm. We use high-quality neoprene dry suits from Waterproof International and O´Three. But it is good to know that there is always a small risk that water can enter the dry suit. This is not dangerous but can feel a little cold, so we recommend you bring a spare set of clothes and a towel, just in case. Kindly note that your hands and face will get wet, which is completely normal and not actually that cold.

We provide an undergarment and neoprene dry suit from Waterproof and 0’Three. We also provide a neoprene hood and neoprene wet gloves to protect your head and hands from the cold. You will also be given fins, mask and snorkel.

Our client to guide ratio is one guide for every 6 snorkelers.

The water temperature is 2-4 degrees C (35-37 degrees F) all year round. The water comes from the Langjökull glacier which keeps it nice and cool, and very refreshing!

We use high quality neoprene dry suits from Waterproof International and O´Three.

Yes, there are 2 toilet facilities at Silfra. However, we don’t recommend that you use them for changing, as it can result in long queues.

Sometimes fish venture into Silfra from Þingvallavatn lake, but they will quickly swim back, as they don’t like chilly glacier waters. However, there is plenty of colorful seaweed, including a bright green variety known as “troll hair”, which makes the fissure unlike anything on the surface.

The cave systems in Silfra can be up to 60 m deep. However, your dive in Silfra will be from about 7 to 12 m, and the maximum diving depth that is permitted is 18 m.

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