Review · REYKJAVIK

Silfra Wetsuit Snorkeling – Meet on Location | Free Photos

★ 5.0 · 376 reviews 3 hours (approx.) From $140 Operated by Adventure Vikings · Bookable on Viator
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Silfra is one of Iceland’s strangest natural experiences: you float through a water-filled crack between two continental plates, with visibility that can reach more than 100 meters. The water comes from glacial melt, filtered through underground rock before reaching Thingvellir National Park. It is cold, quiet, and wonderfully clear.

I like the six-person maximum, which gives your guide time to help with the equipment and calm anyone feeling nervous. I also like the free underwater photos, usually 40 to 100 images, plus hot chocolate at the end. The main catch is simple: this is genuinely cold-water snorkeling, and a drysuit can feel tight, bulky, and awkward until you get used to it.

I would book this for the unusual setting, not for a relaxed swim. The water is about 2 C, your hands and face may get cold, and you must be comfortable in the water and able to swim without help. Still, guides such as Alex, Inigo, Kaja, Dory, Jane, and Fernando have earned strong praise for patient instruction and steady support.

Key points to know before you book

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Key points to know before you book

  • You snorkel through a continental rift: Silfra lies in Thingvellir National Park, between the North American and Eurasian plates.
  • The water is exceptionally clear: Glacial meltwater can provide visibility of more than 100 meters.
  • Small groups matter: Each guide handles up to six people, with more than one group possibly in the water at the same time.
  • The equipment shapes the experience: Drysuits keep most of your body dry but can feel restrictive; wetsuits offer more freedom but expose you to the cold.
  • Photos are included: Your guide takes underwater pictures during the snorkel, with downloads available after a few days.
  • Bring serious base layers: Long thermal underwear and thick wool socks are recommended under a drysuit, and thick socks are especially useful for the wetsuit option.

Why Silfra is worth the trouble

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Why Silfra is worth the trouble

Many Iceland activities give you a fine view. Silfra gives you an odd physical feeling: you are floating in water that has traveled through volcanic ground, inside a narrow rift where the continents are slowly moving apart. You are not touching two plates at once, despite a common misunderstanding. The plates are separated by several kilometers here, but the fissure marks the boundary between them.

The water begins as meltwater from a glacier roughly 50 kilometers away. It moves underground, filtering through porous rock before reaching Silfra. That long journey helps explain the remarkable clarity. On a good section of the route, you can look down and see far below you, with blue-green water and rock formations appearing unusually sharp.

I like that the setting gives the activity real substance. You are not simply floating in a cold pool. The guide explains the geology, the water source, and the park while helping you manage the practical challenge of wearing specialist gear.

The scenery above water matters, too. Thingvellir National Park is a UNESCO World Heritage Site, and the snorkel site sits within a place tied to Iceland’s geology and national history. The tour does not offer a long park visit, so you should treat Thingvellir as the setting for the activity rather than a full sightseeing stop.

Meeting at P5 and getting ready

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Meeting at P5 and getting ready

You meet at the Silfra Adventure Vikings point in Thingvellir National Park, near the parking area at P5. The tour ends at the same location, which makes it fairly simple if you have your own car. This is a meet-on-location activity, not a Reykjavik hotel pickup.

Once you find the snorkel and scuba vans, your guide checks you in and explains the plan. You then provide any needed measurements and complete a medical form. Your height, weight, and age must be sent to the operator, and the stated limits are 150 to 200 centimeters tall and 50 to 120 kilograms. The minimum age is 12, while anyone over 65 needs physician approval.

The preparation is not a minor detail. It is a major part of the three-hour outing. You will put on the suit, hood, gloves, mask, snorkel, fins, and other equipment, then listen to a safety briefing before entering Silfra.

With a drysuit, wear long thermal underwear and thick wool socks underneath. The suit is designed to keep water out, but its neck and wrist seals need to fit snugly. Some people find this uncomfortable, especially around the neck. The suit also makes you buoyant, so you generally stay near the surface.

A wetsuit gives you more freedom of movement and may suit you better if you dislike the enclosed feeling of a drysuit. It does not provide the same level of insulation, though. The water is glacial, so you need to accept that cold is part of the bargain. Thick socks are particularly important with this option.

Bring your swimsuit, towel, weatherproof clothing, and a change of clothes. Wear outdoor clothing suitable for Iceland’s conditions, but skip jeans and high heels. Eat breakfast before arriving. There is no food included, and you will be busy getting ready and snorkeling.

Entering the water at Silfra

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Entering the water at Silfra

After the briefing, you enter the fissure and spend about 30 to 40 minutes in the water. The exact sensation depends on your suit, your tolerance for cold, and the weather around you.

The most striking feature is the clarity. You may see down as far as 42 meters in some sections, while the stated maximum visibility can exceed 100 meters. The water appears clean and almost weightless, and the rock walls give the route a strong sense of place.

This is not a fast swim. Your guide leads the group through the fissure, keeps an eye on everyone, and helps participants who are anxious or having trouble with the equipment. The small group size is useful here. A guide can spend time adjusting gear and offering encouragement without managing a large crowd.

You should not expect a casual snorkel where you can wander wherever you wish. You follow the route and remain with the group. Several groups can be present at the same time, and scuba participants may also be in the water. One account noted that divers disturbed some growth on the rocks, so the view is not always perfectly quiet or untouched.

The drysuit keeps most of your body warm and dry, but your hands and face remain the weak points. Cold fingers and a cold face are common concerns. One practical trick is to turn onto your back briefly if your lips become painfully cold. The water itself may feel less shocking than the air while you are fully suited, with getting out and changing afterward often feeling like the harder part.

You also need to understand the physical demands. A drysuit can make swimming feel awkward at first, especially if the fit is loose and you are more buoyant than expected. You must be able to swim without assistance and feel comfortable in water. This is not the right outing for someone hoping to simply stand or hold onto a guide.

The guides make a real difference

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - The guides make a real difference

The equipment is specialized, but the guide often determines how comfortable you feel. The strongest part of this experience is the level of hands-on help during preparation and the calm supervision in the water.

Alex is repeatedly praised for being kind, fun, and attentive, including with families and teenagers. Inigo combines explanations about the area with a light touch. Kaja helped make a winter outing feel manageable, while Dory was especially reassuring with a nervous older participant. Jane also received praise for patiently helping an anxious snorkeler continue.

Fernando is another guide singled out for his good humor and calm manner. These names matter because the first few minutes in a tight suit can be intimidating. A patient guide can turn that moment from a reason to quit into part of the adventure.

The guide is PADI-certified or holds an equivalent qualification, such as Divemaster or Instructor. That does not remove the need for you to be honest about your swimming ability or medical condition, but it does provide trained supervision during the activity.

The safety briefing covers how the tour works and what to expect before you enter the water. Listen carefully, especially if you have never worn a drysuit. Getting the fit right, understanding your buoyancy, and knowing how to signal discomfort all make the outing easier.

Free photos and the hot chocolate finish

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Free photos and the hot chocolate finish

Your guide takes underwater photos during the snorkel, at no added commission. The usual number is about 40 to 100 images, depending on group size and how comfortable everyone feels in the water. You can download them after a few days.

The photos are a valuable part of the price. You cannot easily take your own pictures while managing a mask, snorkel, fins, gloves, and a suit. The images also show the scale and color of the fissure better than most quick phone shots from the surface.

Do not expect a perfectly staged photo session. The guide is also watching the group and keeping the tour moving. The number and variety of images may vary, but the included photos are a nice extra rather than a paid add-on.

After you leave the water and change, you get hot chocolate. It sounds modest, but after a cold-water activity it is exactly the right ending. Food is not included, so eat before the tour and carry anything else you need for the rest of your day.

Is $140 a fair price?

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Is $140 a fair price?

At $140 per person, this is not a cheap swim. The price covers the guide, equipment, wetsuit or drysuit, underwater photos, hot chocolate, and access to a highly unusual natural site. It also buys a small group, with no more than six people assigned to one guide.

I think the value is strongest if you care about the complete experience: the geology, the clear water, the specialist equipment, the safety support, and the photos. If you judge the price only by the 30 to 40 minutes spent in the water, it may feel high. The preparation and changing process take up much of the three-hour schedule, but that work is necessary for cold-water snorkeling.

The tour is often booked well ahead, with an average booking lead time of about 39 days. That suggests you should not leave it until the last part of an Iceland trip if Silfra is important to you.

The group limit is also worth paying for. A larger group could make the preparation slower and reduce the time your guide can spend helping you. Here, up to six people share one guide, although as many as three groups may be at the site.

Who should book this experience?

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Who should book this experience?

I would recommend it to confident swimmers, geology fans, active families with children aged 12 and older, and anyone who wants an Iceland activity that feels unlike a standard sightseeing stop. It also suits people who value a guide’s personal help and want photos without carrying a camera.

You should think twice if you dislike tight clothing, have claustrophobia, or are uneasy in cold water. The operator notes that drysuits can feel tight around the neck and wrists. A wetsuit may feel less restrictive, but it is colder and requires you to tolerate more direct contact with the water.

The stated height and weight limits are important. Standard sizes run from XS to 4XL, but custom-made suits are not available. If you are near the limits, contact the operator before arrival and provide accurate measurements. Do not assume the suit will fit simply because you can meet the minimum swimming requirement.

You also need to communicate in English, since the briefing and guide support are provided in English. Most people can participate if they meet the swimming, medical, age, height, and weight requirements, but you should check the medical form before booking.

Practical details that can save you discomfort

Silfra Wetsuit Snorkeling - Meet on Location | Free Photos - Practical details that can save you discomfort

Book with enough time to spare, since the activity can be canceled for poor weather or if the minimum number of participants is not met. In either case, you are offered another date or experience, or a full refund. You can cancel for a full refund up to 24 hours before the start time. Cancellations or changes inside 24 hours are not refunded or accepted.

Wear thermal layers under a drysuit, thick socks, and clothing suited to the weather. Bring a swimsuit, towel, and a full change of clothes. A drysuit has a small chance of leaking, so the spare clothes are sensible rather than excessive.

Do not wear glasses in the mask. Use contact lenses or bring your own prescription mask if you have one. Tell the operator your age, height, and weight at booking, and check the medical statement before you arrive.

Should you book Silfra snorkeling?

Book it if you want a memorable Iceland activity built around geology, cold water, and exceptional visibility. The small groups, careful guides, included photos, and hot chocolate make the $140 price easier to justify.

Skip it if you want a warm, easy swim or if you are not comfortable in the water. The drysuit can be awkward, your face and hands may get cold, and the short time in the water comes with a long preparation process. For the right person, though, floating through Silfra is a rare experience that feels both physical and otherworldly.

FAQ

Where does the Silfra snorkeling tour meet?

You meet at Silfra Adventure Vikings in Thingvellir National Park, near parking area P5. The tour ends back at the same meeting point.

How long does the activity last?

The full activity takes about three hours. You spend approximately 30 to 40 minutes in the water.

How cold is the water?

The water is about 2 C, or 35 F. Glacial meltwater fills the fissure, so cold water is a central part of the experience.

Are wetsuits and drysuits provided?

Yes. The activity provides snorkeling equipment and wetsuits or drysuits. With the wetsuit option, wear your swimsuit underneath. Long thermal underwear and thick wool socks are recommended under a drysuit.

How many people are in each group?

Each guide can assist one group of up to six participants. Up to three separate groups may be present during the activity.

Are underwater photos included?

Yes. The guide takes underwater photos at no extra commission. You normally receive 40 to 100 images, available to download after a few days.

Do I need to know how to swim?

Yes. All participants must be able to swim without assistance and feel comfortable in the water.

What is the minimum age?

The minimum age is 12. Contact the operator about younger participants. Anyone over 65 needs approval from a physician.

What happens if the tour is canceled?

If poor weather or an insufficient number of participants causes cancellation, you are offered a different date or experience, or a full refund. You can also cancel for a full refund at least 24 hours before the start time.

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