Silfra: Fissure Snorkeling Tour with Underwater Photos

The clearest water in Iceland awaits. At Silfra, you snorkel through a narrow fissure in Þingvellir National Park, where the North American and European tectonic plates are slowly pulling apart. The setting is unusual even by Icelandic standards: black rock, cold glacial water, and a view below the surface that seems to keep going forever.

I like the small groups of up to six, since a guide can watch each person closely and help nervous swimmers. I also like that GoPro photos are included, so you can keep both hands free instead of trying to manage a camera in thick gloves. The main drawback is the gear. A dry suit can feel tight, heavy, and awkward, especially during the walk to the water.

Key things to know before booking

• The water is exceptionally clear: Silfra’s glacial meltwater has been filtered through underground lava for years, creating remarkable visibility.

• You float in a dry suit: The suit helps keep you afloat, but it can feel constricting and makes walking a little clumsy.

• The actual snorkel lasts about 50 minutes: The full outing takes three hours, with briefing, changing, walking, the water session, and a post-tour break.

• Guides get strong praise: Anna, James, Kevin, Lillian, Abby, Vicky, Mike, and others are repeatedly singled out for clear instructions, humor, patience, and careful safety work.

• Winter is possible: People have taken part in snowy conditions and even at temperatures around minus 11 Celsius, using the supplied equipment and warm layers.

• Strict physical requirements apply: You must be able to swim, feel comfortable in water, communicate in English, and meet the listed height, weight, and age limits.

Why Silfra feels different from ordinary snorkeling

Silfra is not a tropical snorkeling trip. You will not find warm water, coral, or a large collection of fish. The attraction is the geology and the startling clarity.

The fissure lies in Þingvellir National Park, a UNESCO World Heritage Site. Here, the plates beneath North America and Europe are moving apart. The opening is filled with glacial meltwater, which has passed through porous underground rock and arrived exceptionally clean.

That clarity is the real show. You can look down through water that appears almost glasslike, with rock formations visible below. The colors change as you move through the fissure, from pale blue and green tones to darker rock and shadow. The dwarf char is one of the small local fish you might spot, along with plant life beneath the surface.

The phrase between two continents is a memorable way to describe the location, but the experience is less about physically touching two plates and more about seeing the crack between them. You float through a geological feature that is hard to understand from a roadside viewpoint. Put on a mask, and the fissure suddenly makes sense in three dimensions.

Arriving at Troll Expeditions Silfra

You meet at the Troll Expeditions parking area at Silfra in Þingvellir National Park. If you drive, the stated parking option is the P5 lot. From there, you walk to the Tröll Snorkel Meeting Point.

There is no hotel pickup or drop-off, so you need your own transport to the park. Build a little extra time into your arrival, especially if you are unfamiliar with Þingvellir or are visiting in winter conditions. Parking fees are also not included in the $148 price.

The group limit of six is important here. This is not a large bus tour where you are left to find your way through the water. You receive direct guidance from a certified PADI dive guide, and the small size gives the guide a better chance to help with suit fitting, entry, swimming technique, and comfort.

The 30-minute safety briefing

The first scheduled portion lasts about 30 minutes and takes place at Silfra. Your guide explains the fissure, the route, and the safety rules before you enter the water.

This briefing matters because snorkeling in a dry suit feels different from swimming in a swimsuit or wetsuit. The suit provides buoyancy, so you float easily, but it also changes how you move. The guide shows you how to position yourself and what to do if you feel uncomfortable.

Guides such as James, Anna, Abby, Mike, and Kevin receive repeated praise for explaining the process clearly and helping people stay calm. That is useful if this is your first time snorkeling. One person described James as relaxed and reassuring, while others appreciated Anna’s careful help with a swimmer who had poor circulation.

You need to be comfortable in water and able to swim. The guide is there to support you, but this is still an active water activity, not a sightseeing ride. If cold water or enclosed gear makes you anxious, pay close attention during the briefing and ask questions before getting dressed.

Getting into the dry suit

The clothing process is one of the least glamorous parts of the outing. You wear warm base layers underneath, then the dry suit and the rest of the snorkeling equipment. The suit must seal around your neck and wrists, which explains why some people find it tight or restrictive.

You should wear warm socks, leggings, and a shirt as your base layer. Bring a change of clothes in case you get damp. Leave off earrings, bracelets, watches, and other jewelry. If you wear glasses, bring contact lenses instead, since glasses do not work well with the mask.

The walk in the suit can feel strange. Several people describe the equipment as heavy or awkward on land, and that is a fair warning. You may waddle a little, which is not a serious problem, but it does make the approach less graceful than the actual floating.

In cold weather, the effort is worth it. The dry suit keeps your body protected from the water, and people have reported feeling warm even when snow covered the park. One particularly useful detail is that this operator has a heated truck for changing, which can make a major difference in winter. Still, expect your face, head, and hands to feel the cold more than the rest of you.

The 30-minute walk to the fissure

After the briefing and gear setup, you walk for about 30 minutes. This is not a long hike, but the suit and equipment make it more tiring than walking in ordinary clothes.

The walk gives you a chance to see Þingvellir above the water before focusing on what lies below. You are in a broad natural setting shaped by the same geological forces that created Silfra. The park itself adds value to the outing, since the snorkel is not an isolated attraction surrounded by city streets.

Take the guide’s pace seriously. The walk is part of the scheduled activity, and you should not expect to move quickly while wearing the suit. Good footwear and warm clothing underneath will make the approach easier.

About 50 minutes floating through Silfra

The guided snorkeling session lasts about 50 minutes. That is enough time to move through the main sections of the fissure without turning the activity into an exhausting endurance test.

The first few minutes may be the hardest. Even with a dry suit, the water can feel sharply cold around your face, lips, and forehead. Some people report numbness at first, followed by greater comfort after two or three minutes. Your body stays much warmer than you may expect, but your exposed areas still remind you that this is glacial water.

Once you settle in, the suit does much of the floating work. The guide leads the group through the clear water and points out rock shapes, colors, plants, and possible dwarf char. You can focus on looking rather than constantly kicking, although you still need to follow instructions and stay with the group.

The depth and clarity may surprise you. From the surface, Silfra can look calm and modest. Through the mask, the fissure opens below you, with rocks and blue-green water creating a much bigger sense of space. Some people find that thrilling; others find it slightly intimidating. If you dislike looking into deep, clear water, this is worth considering before you pay.

The small group helps here. Guides remain close and give simple instructions as you move from one part of the fissure to the next. The strongest pattern in the guide feedback is not flashy performance, but patience. Lillian is praised for being kind and patient while people got dressed, Kevin for clear explanations in the water, and Vicky for making sure every member of a six-person group appeared in the photos.

GoPro photos without carrying a camera

Photos are included, which is a practical advantage. You do not need to rent a camera, hold a device in cold gloves, or spend the snorkel worrying about whether it is recording.

The guide carries the GoPro and takes pictures during the session. This also leaves your hands free for swimming and helps you stay focused on the experience. Several people specifically value the number of photos and the effort guides make to photograph everyone, not just the easiest swimmer to reach.

Photo quality can vary. One person joked about an overly close portrait, so do not expect a carefully staged professional photo shoot. Still, the photos capture the part you cannot easily photograph yourself: your body floating in the fissure, with the clear water and rock below.

That makes the included photos a genuine part of the tour’s value. At $148, the price is not low, but having the images included removes one extra charge and one extra task.

The walk back and the 30-minute break

After the water session, you walk back for about 30 minutes. By this point, the gear may feel heavier, and your hands or face may still be cold. The return is less about sightseeing and more about getting warm and changed.

The final scheduled portion includes about 30 minutes of break time. Hot drinks and cookies are provided, a small touch that matters after cold-water snorkeling. Hot chocolate has received particular praise, and it gives you a comfortable finish rather than sending you straight back into the Icelandic weather.

You also receive the GoPro photos as a souvenir. The exact delivery process is not detailed in the information provided, so confirm how and when you will receive them if the images are important to you.

Is $148 a fair price?

At $148 per person, this is a special-occasion activity rather than a casual add-on. The price includes a certified PADI guide, dry suit, snorkeling equipment, hot drinks, cookies, and GoPro photos. It does not include parking or transport to Þingvellir.

I think the price makes sense if you value three things: a tightly managed small group, specialist cold-water gear, and photos you do not have to take yourself. The guide’s role is substantial. You are not simply handed a mask and pointed toward the fissure. You receive a briefing, help with an uncomfortable suit, supervision in the water, and assistance throughout the route.

The value is weaker if you only want a quick look at Þingvellir or are unsure about swimming. Nearly three hours of the outing involves preparation, walking, and changing around a roughly 50-minute water session. That is normal for a cold-water activity, but you should not think of the full three hours as three hours of snorkeling.

Free cancellation up to 24 hours before the start gives you some flexibility, and the reserve-now, pay-later option can help when you are still arranging an Iceland itinerary. Those booking terms are useful, but the key value question remains simple: do you want a rare geological experience, or would you rather spend the money on a longer land-based excursion?

Who will enjoy this most?

I would recommend Silfra to you if you:

• Can swim and feel comfortable in open water
• Want an unusual Iceland activity beyond the usual viewpoints
• Enjoy geology, nature, or unusual physical experiences
• Are willing to tolerate a tight dry suit and a cold face
• Like having a guide close by in a small group
• Want photos without managing your own camera

This is less suitable if you dislike restrictive clothing, cannot swim, use a wheelchair, or are pregnant. The listed height range is at least 145 centimeters and no more than 200 centimeters. The weight range is 45 to 120 kilograms.

The age rules are strict. The maximum age is 69, and anyone aged 60 or over needs medical clearance from a doctor. You must also bring the requested medical statement. These are not details to leave until the morning of the tour.

You need to communicate in English because the briefing and water instructions are delivered in English. The experience is not suitable for anyone under the listed height requirement or over the listed age limit.

My recommendation: book it if the cold does not scare you

I would book this tour if you want one of Iceland’s most unusual nature activities and are prepared for the practical discomfort that comes with it. The clearest benefits are the small group, close guide support, included photos, and the chance to see Þingvellir from below the surface.

The strongest guides make a real difference. Anna is particularly attentive with nervous or cold-sensitive swimmers, James is praised for calm instruction and humor, and guides including Kevin, Lillian, Abby, Vicky, and Mike are repeatedly described as careful and encouraging. That steady supervision matters more than jokes or sightseeing commentary when you are trying to move in a bulky suit.

I would skip it if you want warm water, easy walking, or a relaxed activity that requires no physical effort. For everyone else who meets the requirements, Silfra offers a rare combination: geology you can see, water you can almost taste, and photos that prove you really floated through a crack between moving plates.

FAQ

Where does the Silfra snorkeling tour meet?

Meet at the company’s parking lot at Silfra in Þingvellir National Park. If you drive, you can park at the P5 parking lot and walk to the Tröll Snorkel Meeting Point.

How long does the tour take?

The tour lasts three hours. The schedule includes a 30-minute safety briefing, about 30 minutes walking to the water, around 50 minutes of guided snorkeling, 30 minutes walking back, and a 30-minute break.

What is included in the price?

The $148 price includes a certified PADI dive guide, dry suit, snorkeling equipment, hot drinks, cookies, and GoPro photos.

Is hotel pickup included?

No. Hotel pickup and drop-off are not included, so you need to arrange your own transportation to Þingvellir National Park.

Do I need to pay for parking?

Yes. Parking fees are not included. The stated parking option is the P5 parking lot at Þingvellir.

Do I need to know how to swim?

Yes. You must be able to swim and feel comfortable in the water to take part.

What should I wear under the dry suit?

Wear warm base layers, including socks, leggings, and a shirt. You should also bring a change of clothes in case you get wet.

Can I wear jewelry or glasses?

No jewelry such as earrings, bracelets, or watches should be worn. If you use glasses, bring contact lenses because glasses are not suitable with the snorkeling mask.

Are there age and medical requirements?

You must be under 70, with a maximum participation age of 69. Anyone aged 60 or over needs medical clearance from a doctor and must bring a medical statement.

Can pregnant women or wheelchair users take part?

No. The activity is not suitable for pregnant women or wheelchair users. It also has height and weight limits: 145 to 200 centimeters tall and 45 to 120 kilograms.