Silfra: Fissure Snorkeling Tour with Underwater Photos

Silfra lets you float between the tectonic plates of North America and Europe, in water so clear that the rocks below can look startlingly close and impossibly far away at the same time. The setting is Þingvellir National Park, a UNESCO World Heritage Site, so the experience joins a remarkable geological site with a very hands-on outdoor activity.

I like two things especially: the small groups of up to six make it easier for your guide to watch everyone, and the included GoPro photos leave your hands free to enjoy the swim. The dry suit also does a good job of keeping your body warm, though getting dressed, walking in the bulky gear, and adjusting to cold water around your face can be uncomfortable.

• Float between two continents: Silfra sits in the rift where the North American and European plates are pulling apart.
• See extraordinary water clarity: Filtered glacier meltwater gives you long views through the fissure.
• Stay with a small group: A maximum of six participants allows close guidance in the water.
• Use company-provided gear: A dry suit, thermal layers, mask, snorkel, gloves, and other required equipment are supplied.
• Receive GoPro photos: Your guide takes underwater and surface pictures during the swim.
• Warm up afterward: Hot drinks and cookies are served after the activity.

Why Silfra Feels Different From Ordinary Snorkeling

Silfra is not a tropical reef trip. You will not find warm water, colorful fish in large numbers, or a long leisurely swim. Its appeal is the strange, quiet feeling of moving through a narrow geological crack filled with exceptionally clear glacial water.

The main attraction is below the surface. From above, the fissure may look calm and modest. Once your face is in the water, the depth, rock formations, and clean blue-green color become much more dramatic. You can look down through the water and see the bottom far below, which some people find thrilling and others find slightly unnerving.

The water comes from glacier melt filtered through underground lava for years before reaching Silfra. That filtering helps explain the remarkable clarity. You may also see local plant life and the small dwarf char, though this is not primarily a wildlife outing.

I like the way the experience makes geology physical. You are not just looking at a diagram of tectonic movement in a visitor center. You are floating inside the gap created as the plates slowly move apart.

Getting Ready at the P5 Parking Area

You meet at the company’s parking lot at Silfra in Þingvellir National Park. If you drive, use the P5 parking lot and walk to the Tröll Snorkel Meeting Point. Parking fees are not included, and hotel pickup and drop-off are not provided, so plan your route before leaving Reykjavík or your accommodation.

The first part of the activity is preparation. Your guide explains the fissure, outlines the route, and gives a safety briefing that takes about 30 minutes. This is useful time, not filler. You learn how to breathe through the snorkel, how to move in the dry suit, and what to do if you feel uneasy in the water.

The group limit of six is a real benefit here. Getting into a dry suit involves help with seals, zippers, and layers, and the guide can give each person more attention than a large coach group would allow. Guides named in recent tour schedules include Anna, James, Kevin, Lillian, Abby, Vicky, and Mike.

The company also offers a heated truck for changing. That matters greatly in winter, when the air can be far below freezing. Changing outside in wet or windy conditions would make the activity much less pleasant, so ask where you will change when you arrive and use the warm space properly.

The Dry Suit: Warm Body, Awkward Walk

You wear warm base layers under the dry suit. Bring thick socks, leggings or thermal bottoms, and a warm shirt. Avoid jewelry, including earrings, bracelets, and watches, because it can interfere with the suit or get lost.

The suit keeps water away from your body and helps you float. It does not make the experience feel like a warm bath. Your hands, head, lips, and forehead may still feel the cold, especially at the start. Several people found the first minutes the hardest, then adjusted after two or three minutes.

The suit is also bulky. Walking in it can feel like waddling, and the route from the changing area to the water takes about 30 minutes on foot according to the schedule. The protective layers are worth the awkwardness once you are floating, but you should not expect an effortless stroll.

This is one of the few parts of the activity I would describe as genuinely uncomfortable. The neck seal can feel tight, and the suit may be restrictive. Tell your guide immediately if the fit feels wrong. The aim is a snug seal, not pain.

Walking Through Þingvellir Before the Water

The walk to the fissure gives you time to look around Þingvellir. You are moving through an important geological area, not simply heading to a swimming pool in the countryside.

The walk takes roughly 30 minutes in the scheduled plan. In winter, snow and ice can change the feel of the route, and the cold air adds to the effort of wearing the equipment. In warmer months, the surroundings are easier to appreciate without focusing so much on staying warm.

This approach is part of the experience, but it is also the point at which the tour may feel slow. You spend a good portion of the three hours getting dressed, walking, receiving instructions, and changing again. If you want a long stretch of uninterrupted snorkeling, this is not that kind of tour.

Still, the pacing helps keep the activity controlled. Your guide can check the group before entering the water, explain the route, and make sure no one rushes into a cold, unfamiliar environment.

Entering Silfra’s Clear Glacial Water

The guided snorkeling section is listed as about 50 minutes, though the actual time in the water can feel closer to 30 minutes. That may sound brief for a three-hour activity, but the cold, the suit, and the preparation make a shorter swim sensible.

Your guide leads the group through the fissure and stays nearby throughout. You follow a controlled route rather than setting off alone. The goal is to look, float, and take in the rock walls and unusual colors without fighting the water or the equipment.

The water is cold, but the dry suit keeps your torso warm. The most noticeable sensation is often on exposed areas around the face and hands. The suit also provides buoyancy, which helps you remain on the surface and can reassure anyone concerned about sinking.

If you are nervous, tell your guide before entering. James, Anna, Kevin, Mike, Abby, and the other guides are responsible for clear instructions and comfort checks. A calm guide makes a major difference here, especially for a first-time snorkeler or anyone uneasy about seeing deep water below.

The water’s clarity is the main visual reward. You can see through long stretches of the fissure, with rocks and colors changing as you move. The scene can feel almost unreal, but the geological setting keeps it grounded: this is a natural crack in the earth, filled with water that has passed through Iceland’s volcanic ground.

Photos Without Holding a Camera

The included GoPro photos are more valuable than they may first appear. Gloves, a mask, and a snorkel leave little room for managing your own camera. A camera attached to the guide means you can keep both hands free and focus on floating.

Guides make an effort to photograph each person, as well as the surrounding water and rock formations. Results can vary with light, water movement, and group position, but the photos give you a record of an activity that is hard to capture from the shore.

This inclusion also improves the value of the $148 price. Some outdoor activities charge extra for a camera or photo package. Here, the pictures are part of the experience, along with equipment, a certified PADI guide, hot drinks, and cookies.

Do not treat the photos as the main reason to book. The strongest part of Silfra is seeing the fissure yourself. The pictures are a useful bonus, especially because you cannot easily take them while wearing gloves and managing a snorkel.

Warm Drinks, Cookies, and the Slow Return

After the swim, you walk back, change out of the gear, and have a break of about 30 minutes. Hot drinks and cookies provide a welcome finish, particularly on a winter morning.

The post-water period is practical as much as social. You need time to remove the suit, dry off, and put on warm clothing. Bring a complete change of clothes in case something gets damp. Even a well-fitted dry suit may not prevent every small leak, and extra clothes remove some stress from the final part of the outing.

The scheduled return includes another walk of about 30 minutes before arriving back at the Troll Expeditions meeting point. The complete activity lasts three hours, so avoid booking another fixed activity too close afterward.

Is $148 a Fair Price?

At $148 per person, this is not a cheap add-on. Iceland’s prices can rise quickly for guided outdoor activities, and Silfra requires specialist suits, safety equipment, trained staff, and a careful setup in a cold natural site.

For the price, you receive:

• A certified PADI guide
• Dry suit and snorkeling equipment
• A small group capped at six
• Hot drinks and cookies
• GoPro photos
• A guided visit inside Þingvellir National Park

I consider the price fair if Silfra is high on your Iceland list. The photos and small group help, and you avoid the extra cost of renting a camera. The value is weaker if you are mainly looking for a long swim or a low-cost nature walk.

You also need to account for transport and parking. There is no hotel pickup or drop-off, so you must reach Þingvellir yourself. If you have a rental car, the meeting arrangement is straightforward: park at P5 and walk to the meeting point.

Who Should Book This Experience

This activity suits you if you can swim, feel comfortable in water, and want a memorable geological experience rather than a relaxed aquatic outing. First-time snorkelers can take part, provided they meet the physical requirements and listen carefully to the guide.

The size limits are strict. You must weigh between 45 and 120 kilograms, be at least 145 centimeters and no more than 200 centimeters tall, and be under 70. Anyone aged 60 or over needs medical clearance from a doctor. Pregnant women cannot participate.

You also need to communicate in English, since the tour runs in English. Wheelchair users cannot take part, and the walking, bulky suit, and water entry require a reasonable level of fitness.

People with circulation concerns should think carefully and speak with the operator before booking. One guide, Anna, helped a participant with Raynaud’s syndrome by taking extra care and supplying warmed gloves, but this should not be treated as a guarantee that the activity will suit every medical condition.

Practical Tips for a Better Silfra Visit

• Wear warm base layers: Use socks, leggings, and a shirt under the dry suit. Avoid cotton if you have suitable thermal clothing.
• Bring spare clothes: A full change gives you peace of mind after the swim.
• Leave jewelry behind: Earrings, watches, and bracelets are not allowed.
• Use contact lenses if needed: Glasses cannot be worn under the snorkeling mask.
• Expect a tight fit: The neck and wrist seals can feel restrictive.
• Tell the guide if you are anxious: Clear instructions and steady support make the water entry easier.
• Allow extra time: The three-hour schedule includes walking, dressing, the safety briefing, snorkeling, and the final break.
• Plan transport carefully: Parking and hotel transfers are separate from the tour.
• Check the weather before dressing: Þingvellir can be cold, snowy, or windy, even when Reykjavík feels manageable.
• Book with flexibility: You can cancel up to 24 hours in advance for a full refund, and the reserve-now, pay-later option keeps payment flexible.

Final Verdict: A Strong Choice for the Right Kind of Adventure

I would book this tour if you want one of Iceland’s most unusual outdoor experiences and you are willing to accept cold water, awkward equipment, and a fairly short swim. The clarity of Silfra is the star, while the small group and attentive guides make the practical side easier.

I would skip it if you dislike tight clothing, cannot swim comfortably, have limited mobility, or want a warm and leisurely water activity. For everyone else, the $148 cost buys more than a quick snorkel: you get a guided look at a major geological feature, a careful safety setup, supplied equipment, and photos to take home.

The best reason to choose this experience is simple. You are not just watching Iceland’s geology from a trail. You are floating inside it.

FAQ

Where does the Silfra snorkeling tour meet?

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

How long does the activity last?

The tour lasts three hours. This includes a 30-minute safety briefing, walking sections, about 50 minutes for the guided snorkeling portion, changing time, and a final break.

Is the snorkeling equipment included?

Yes. The tour includes a dry suit and the required snorkeling equipment. You should bring warm base layers, including socks, leggings, and a shirt.

How cold is the water?

Silfra is filled with cold glacial meltwater. The dry suit keeps your body warm, but your hands, face, lips, and forehead may feel cold at first. You should be prepared for a tight and somewhat restrictive suit.

Are photos included?

Yes. The guide takes GoPro photos during the activity, and the photos are provided as a souvenir.

Who cannot take part?

Pregnant women, wheelchair users, people under 145 centimeters or over 200 centimeters tall, and people over 70 cannot take part. You must be able to swim, feel comfortable in water, communicate in English, and meet the stated weight range of 45 to 120 kilograms. Participants aged 60 or over need medical clearance from a doctor.