Silfra feels like snorkeling on the planet’s fault line. In Thingvellir National Park, you swim through UNESCO-listed glacial water where you can look down into the rift between the North American and Eurasian plates, and the clarity is unreal. I also love that they outfit you with dry suits and do a real safety briefing before you gear up. The one thing to plan for: the water is not warm, and the cold tends to hit your face and hands first.
This tour is built for convenience. You don’t need to pack snorkel gear, and you finish with hot chocolate and cookies plus free underwater photos. One practical drawback: this experience is strict about timing, so show up early, not late.
In This Review
- Key highlights worth knowing
- Silfra in Thingvellir: why this snorkel feels different
- Meeting at Arctic Adventures Silfra and getting geared up
- The safety briefing and what to listen for
- Swimming the Silfra Fissure: what the water time is really like
- Cold reality check (and how to handle it)
- The small-group setup (and why timing matters)
- Photos, cocoa, and the little things that make it memorable
- Guides that show up in reviews (and what you can learn from them)
- Who this tour suits best (and who should think twice)
- Value for the price: what you get for about $141
- Should you book Silfra with Arctic Adventures?
- FAQ
- Where does the Silfra snorkeling tour meet?
- How long is the tour?
- What gear is included?
- Do I need to bring anything?
- Can I wear glasses under the goggles?
- Do I need to swim, and is English required?
- What is the minimum age, and can children go?
- Who cannot participate?
- Is transportation from Reykjavik included?
Key highlights worth knowing
- Swim between tectonic plates: you look down into the Silfra rift where the plates meet, not just around rocks.
- Dry-suit setup is the whole game: it keeps you warm enough to focus on the view, even when it feels chilly.
- Small-group feel: you’ll get hands-on attention, and the water access is limited at one time.
- Free underwater photos: you get memories captured underwater instead of trying to manage a camera.
- Hot cocoa after: it’s a simple comfort that matters when you’re coming out cold.
- Strong currents, slow pace: the water can move you, which can be good if you want to focus on the sights.
Silfra in Thingvellir: why this snorkel feels different
Silfra Fissure is one of those rare travel experiences where the main attraction isn’t marine life or a coral reef. It’s the physics. You’re snorkeling in crystal-clear water inside a rift that cuts through Iceland’s geology, right in Thingvellir National Park, a UNESCO site. The water clarity is so sharp that the bottom and the rift walls can look almost too crisp—like the scene is staged.
What makes this tour especially compelling is the mix of “adventure” and “support.” Yes, you need a moderate level of fitness and you must be able to swim. But the operator doesn’t throw you in with zero help. A PADI-certified guide gives you a safety briefing, then fits you with a full setup so you can actually enjoy the water time instead of fighting cold and gear.
And the after-snorkel part is not an afterthought. Warm cocoa and cookies are included, which sounds small until you remember this is glacial water. It’s an easy win for comfort after you’ve spent time with your face (and hands) in the chill.
You can also read our reviews of more photography tours in Reykjavik
Meeting at Arctic Adventures Silfra and getting geared up
Your tour begins at the Arctic Adventures Silfra Fissure meeting point in Thingvellir National Park. The tour ends back at the same meeting point, so you’re not doing some complicated “we’ll drop you somewhere” shuffle.
Before you touch the water, you’re collecting the gear and getting ready in layers. You’ll be given snorkeling equipment including snorkel, goggles, fins, dry suit, thermal undersuit, hood, and boots. The dry suit goes over your clothes, so the quality of your base layers matters.
Here’s what you should bring for comfort:
- warm base layers (fleece or wool is ideal; skip cotton)
- warm socks
- a small towel
- a change of clothes (just in case)
One detail worth taking seriously: glasses can’t be worn under the goggles. If you need vision correction, bring contact lenses. Also, the tour requires you to review their snorkeling handbook before you go. That’s not busywork—it covers medical and safety requirements, and if you don’t meet them, they can’t take you.
The safety briefing and what to listen for
The tour includes a thorough safety briefing from your PADI-certified instructor. This is where you learn how to handle the dry suit, how to manage your snorkel and mask, and how to move in the water without panicking.
I’d treat this briefing like the most important part of the day. Even if you’re confident in the water, the conditions are unusual: the water is cold, visibility is high, and the rift geometry changes how you judge distance. A calm, clear briefing makes the difference between “cool science field trip” and “trying to remember what the guide said.”
The reviews include a recurring theme: sometimes it can be tricky to hear directions during the gear-and-water phase. That doesn’t mean the guides aren’t good. It’s a reminder that you should listen closely right away, then ask questions if anything feels unclear.
Swimming the Silfra Fissure: what the water time is really like
Once you’re ready, you enter the turquoise Silfra water and swim in a place that’s basically a flooded crack in the earth. The rift bridges the gap between the North American and Eurasian tectonic plates, and you get a long look down into it.
You should know what you’re seeing. This isn’t a reef full of fish. Expect mostly rock and algae, plus that jaw-dropping clarity that lets you see the ravine walls. Many people love this because it’s about the geology first, not about spotting sea creatures.
The rift depth is listed as about 82 feet (24 meters), which helps you understand why the scene looks so intense when you’re floating and looking down. You’ll have enough time to float and enjoy it, and you won’t feel rushed in the water if your group is on track.
Also, currents can move you along. That can sound scary, but in practice it often means you get carried steadily rather than fighting your way. If you relax and follow instructions, it can make the experience smoother—and lets you focus on the view.
Cold reality check (and how to handle it)
Cold is the main consideration. Even with the dry suit, your face and hands can feel it most. In the water, you may feel the chill quickly, especially at the start. Some people find it manageable; others feel it more strongly.
A few practical ways to make it easier:
- wear warm base layers (fleece or wool)
- bring warm socks
- keep your movement calm and controlled when you enter
- don’t rush the gear; tighten and settle it correctly before you start
One review mentioned that they were expecting the water to be worse than it was. Another said face and hands still get cold. My takeaway: you can absolutely do this, but you should not treat it like a warm-weather snorkel.
The small-group setup (and why timing matters)
This tour has a capped group size. The experience is set up with very limited numbers in the water, which is partly about safety and partly about keeping the experience manageable. Some descriptions mention a small group, and the practical reality is that water access is limited at any one time.
That design is good for you because you’re not lost in a crowd. You’re more likely to get personalized attention from your guide. In reviews, guides are frequently praised for patience and for keeping things calm. People also mention how their guides took pictures, explained what they were seeing, and helped them when they felt panicked.
But there’s a tradeoff: when the operator runs many departure times close together, you may wait. One downside mentioned in reviews was waiting around due to how bookings are scheduled. You can reduce your personal stress by arriving early, staying ready, and being patient if there’s a short lineup before your group goes in.
And here’s the part you can’t ignore: don’t be late. Several reviews call out that the operation can be strict about timing. If you’re even a bit behind, you may miss your slot and it’s hard to renegotiate on the spot.
Photos, cocoa, and the little things that make it memorable
Included in the tour are free underwater photos plus hot chocolate and cookies. This matters more than you’d think.
Underwater photography in cold water is hard. Your hands are limited, your breathing rhythm changes, and you’re focused on staying comfortable. Free photos solve that problem. Even better, some guides are specifically praised for taking great pictures, including one named Dimitri who helped as someone panicked, while also capturing the moment.
Just keep expectations realistic. Some reviews were happy with the photos, while a few were disappointed. That doesn’t mean the photo service doesn’t work—it means your results can depend on your guide and how your group is managed in the water. Still, for most people, free underwater photos are a big value-add.
The hot chocolate and cookies afterward are simple but effective. You’ll likely feel chilly as soon as you’re out. Having something warm and sweet right away helps you bounce back instead of hunting for food.
Guides that show up in reviews (and what you can learn from them)
One reason this tour earns repeat praise is the way guides run it. Several guides were named in reviews:
- Nico, who was praised for being awesome and for taking good pictures
- Carol, who led a small group and made the experience fun
- Pedro, described as amazing and patient
- Jampy, highlighted for being great and for making it enjoyable
- Francesca, praised for delivering a strong experience
- Matt and Vasco, mentioned as excellent and patient
- Christian, noted for being amazing and for helping with the family experience
- Kris and Alex, called out as great at previewing the experience and making it feel like a challenge you can handle
- Dimitri, praised for humor and calm support
You don’t need to remember every name. What you should take from this is the pattern: the best experiences come when you follow the briefing, stay close to your guide, and let them manage the flow.
Who this tour suits best (and who should think twice)
This isn’t a “tour in the background” activity. It’s active, it’s outdoors, and you’re in cold water wearing a dry suit. The tour is best for people who:
- can swim and understand English
- want an unusual Iceland experience focused on geology
- prefer a small-group feel with lots of guidance
- are comfortable following instructions carefully
It requires moderate physical fitness, and the tour’s minimum age is 12. Under 18 must be accompanied by a parent or adult guardian booked on the same tour.
There are also clear no-go categories based on the operator’s rules:
- Pregnant people are unable to participate because of the risk of water entering the suit.
- Some medical conditions require doctor approval, and if you don’t meet the requirements in their snorkeling handbook, they can’t accommodate you.
If you have any medical questions, don’t wait until the day of. Check the handbook and get approval ahead of time if your situation needs it.
Value for the price: what you get for about $141
At around $141.49 per person, this tour isn’t cheap, but it also isn’t paying for a generic activity. You’re paying for:
- a PADI-certified guide and safety briefing
- full snorkeling gear with dry suit setup
- a UNESCO-site experience in Thingvellir National Park
- free underwater photos
- hot chocolate and cookies
- a controlled small-group format with limited water access
You save money and hassle by not renting or buying snorkel gear. You also reduce risk by getting proper cold-water equipment and guidance. If you value convenience and want the experience “done for you,” the price feels more reasonable.
Where value depends on you is how seriously you take preparation. If you show up underdressed, you’ll feel the cold more. If you don’t review the handbook, you risk being turned away. The tour’s rules are part of what makes the experience run safely.
Should you book Silfra with Arctic Adventures?
If you’re traveling to Iceland and you want one signature activity that mixes science, scenery, and a real sensory experience, I think you should book it. Silfra is a standout because you’re not looking at scenery from a distance—you’re literally floating inside the rift.
Book this tour if:
- you can swim
- you’re ready for cold (and you pack warm base layers)
- you want a guided, small-group experience with dry suits
- free underwater photos and hot cocoa sound like a real bonus
Skip or reconsider if:
- cold water would ruin your day (because face and hands do get chilly)
- you’re not able to meet the medical or suit-safety rules in the snorkeling handbook
- you hate strict timing and you know you might run late
My final advice: treat it like an outdoor sport, not a casual stroll. Arrive early, dress for warmth, listen to the briefing, and go with the flow in the current. Do that, and Silfra can be one of the most memorable half-days you’ll spend in Iceland.
FAQ
Where does the Silfra snorkeling tour meet?
The tour meets at Arctic Adventures Silfra Fissure in Thingvellir National Park, at the address listed as 801, Iceland.
How long is the tour?
The duration is approximately 3 hours.
What gear is included?
You’ll get snorkeling gear including a snorkel, goggles, fins, dry suit, thermal undersuit, hood, and boots.
Do I need to bring anything?
Bring warm base layers (preferably fleece or wool, not cotton), warm socks, a small towel, and a change of clothes (just in case).
Can I wear glasses under the goggles?
No. Glasses cannot be worn under the goggles, so contact lenses are recommended if you need vision correction.
Do I need to swim, and is English required?
Yes. All participants must be able to swim and understand English so they can safely participate.
What is the minimum age, and can children go?
The minimum age is 12. Participants under 18 must be accompanied by a parent or adult guardian booked on the same tour.
Who cannot participate?
Pregnant people are unable to participate. Also, medical issues outlined in the snorkeling handbook require doctors approval; some conditions mean you cannot join.
Is transportation from Reykjavik included?
No. Transfer from Reykjavík is not included, and you’ll need to make your own way to the meeting point in Thingvellir National Park.
