Thrilling 9-Hour Combo Tour of Silfra Snorkeling and Raufarholshellir Caving from Reykjavik

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Tour starts
Reykjavík, Iceland
9 hours
All year
Minimum age
12 years old


Experience the beautiful views of Iceland from a new angle when you book this nine-hour combo tour of lava caving near Reykjavik and snorkeling in Silfra fissure. Adventurers should book now to discover geological wonder in one of Iceland's longest lava caves and the underwater world between two continents.

The small-group tour begins in Iceland's capital, Reykjavik, where you meet your friendly tour guide. Aboard a minibus from the BSI bus terminal, you will travel approximately 26 miles (42 kilometers) to reach the Raufarholshellir lava cave. 

As an underground lava tunnel, Raufarholshellir cave gives insight into the volcanic activity that created Iceland. As you explore parts of its 4,461 feet (1,360 meters) length, you will see colorful rock formations and beautiful ice structures.

There is no need to crawl through the Raufarholshellir lava tube since its ceiling is up to 33 feet (10 meters), and most of it is paved. Even better, this natural cave is available for tour no matter what season you visit. 

Following an otherworldly caving tour experience, you'll head out for a quick lunch at a nearby cafe. Soon after, you'll journey to the Thingvellir National Park for another immersive experience.

As soon as you arrive at the Thingvellir National Park, spectacular views of the lush and rugged landscape will welcome you. The park is both a geological paradise and a place of historical significance, as the birthplace of the first Icelandic parliament.

Thingvellir's most unique quality is its location in the Mid-Atlantic rift between the clearly visible North American and Eurasian tectonic plates. This geological activity helped create the Silfra fissure, where you'll have an unforgettable snorkeling experience.

One thing that sets the Silfra snorkeling adventure apart is the water itself. It's crystal clear, with visibility often exceeding a hundred meters (330 feet), and is pure enough to drink.

The channel may seem narrow from the land, but once you're in the water, you'll see how it opens up beneath the surface, spiraling down to a breathtaking crack. The underwater world is phenomenal, with dramatic rock formations and vivid colors. Occasionally, a few fish from the Thingvallavatn lake would also appear in the fissure.

For a safe and convenient experience, this tour provides you with all the necessary snorkeling and caving gear you need. Your certified divemaster will also take underwater shots as your souvenir for this great adventure.

The tour ends as you make your way back to Reykjavik.

Explore the geologically active nature of Iceland in this thrilling combo tour of lava caving and snorkeling. Check availability now by choosing a date. 

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Certified PADI diveguide
English-speaking lava caving guide
Specialized caving gear and safety equipment (including helmet and headlight)
Specialized snorkeling gear (including neoprene dry suit and snorkel)
Silfra admission fee
Minibus transfer from Reykjavik (with free Wi-Fi)
Hot chocolate and cookies
Underwater photos by tour guide



What to bring

Warm and waterproof outdoor clothing
Gloves and warm socks
Warm undergarment clothing (fleece/wool sweater and pants)
Change of clothing
Sturdy hiking shoes (can be rented upon booking)

Good to know

- Minimum age to join the combo tour is 12.

- Tour joiners must know how to swim independently.

- Drysuits have height-weight limitations. The minimum height is 4’9 feet (150 centimeters), while the maximum is 6’5 feet (200 centimeters). The minimum weight is 99 lbs (45 kilograms), while the maximum is 265 lbs (120 kilograms).

-This tour includes both pick-up and meet-on-location options. If you’re booking with a meet-on-location option, the meeting place for the second tour is at the Silfra car park.

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