Snorkeling Between Continents in Iceland’s Silfra Fissure 🌊

Between Two Worlds

It’s hard to describe what it feels like to float in the space that divides continents. Cold doesn’t quite cover it. “Freezing” might come close, but even that doesn’t capture the strange calm that takes over once you’re in — floating between the North American and Eurasian tectonic plates in the crystal-clear waters of Iceland’s Silfra Fissure.

I went in September, when the air still had a hint of autumn warmth, but the water was straight from the glacier, hovering around 36°F (2°C). Tour guides had warned us, but nothing prepares you for that first shock as the icy water seeps into every thought. Then, somehow, your body adjusts. The cold fades (a little!), and you’re suspended in one of the most surreal places on Earth.

The Clearest Water on Earth

Silfra isn’t just another snorkelling or site. The water here is glacial melt filtered through lava rock for decades, which gives it visibility of over 100 meters. You can see everything from the texture of the rock walls and every shimmer or light to even the tiny bubbles from your breath as they rise toward the surface.

Drifting between the plates feels otherworldly. You can stretch out your arms and almost touch two continents at once, surrounded by shades of blue that look too vivid to be real. It’s quiet, calm, and completely unlike anything else in Iceland.

A Small-Group Experience

Our group was small, just six divers and a guide, which made it feel personal and unhurried. Silfra tours are carefully regulated to protect the fragile environment, and reservations are required. Before entering the water, you’re fitted into a dry suit, hood, gloves, and fins. The guides make sure everything fits snugly, walking you through safety tips before you take the short path to the water’s edge.

Once you’re in, the current gently carries you through the fissure for about 30 to 40 minutes, from narrow passageways to wide, light-filled chambers. Most tour companies take underwater photos for you, which means you can focus completely on the experience instead of fumbling with a camera in the cold (and trust me, you wouldn’t want to). These guides know all the best angles to capture that deep-blue glow that no filter could ever recreate.

Once in a Lifetime

When I climbed out, peeling off layers of neoprene with frozen hands, I couldn’t stop smiling. The snorkeling was cold, intense, and absolutely worth it. Floating between continents in water this clear is something you don’t easily forget. It’s a quiet, one-of-a-kind experience that stays with you long after you leave.

If you ever find yourself in Iceland, go for it. Snorkel Silfra, brace for the cold, and take in the unreal beauty of it all. It’s an adventure you’ll remember every time someone mentions Iceland.

FAQ: Diving Silfra, Iceland

Where is Silfra Fissure?


Silfra is located inside Þingvellir National Park, about a 45-minute drive northeast of Reykjavík, Iceland.

How cold is the water in Silfra?


The water stays a consistent 36°F (2°C) year-round, fed by glacial melt from Iceland’s Langjökull glacier.

Can you scuba dive in SIlfra? Do you need a scuba certification?


Yes. You can scuba dive in Silfra. You must be PADI Open Water certified (or equivalent) and experienced with cold-water diving. If you’re not certified, you can still snorkel Silfra with a guided tour. For snorkeling, you must be comfortable swimming and able to follow safety instructions in English.

Do I need to book in advance?


Absolutely. Silfra tours are popular and strictly limited to small groups. Book several weeks ahead, especially in summer and early fall.

What should I wear?


Tour operators provide all snorkeling gear, including a dry suit, thermal underlayers, mask, fins, hood, and gloves. Dress in layers, and bring warm socks, a change of clothes, and a hat for afterward.

Can I take photos underwater?


Most tour companies include free underwater photos in the package. Guides use professional cameras and share digital copies, so you can enjoy the experienc

How long is the snorkeling portion?

You’ll spend about 30 to 40 minutes in the water, followed by a short walk back to the parking lot and a warm drink to finish.

When is the best time to dive Silfra?

Silfra is open year-round. September through March offers crisp air and vivid water clarity, while summer brings milder weather and longer daylight.