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Adventure Collective Journal

Snorkel Between Continents at Silfra: Thingvellir's Crystal Fissure Experience

Snorkel Between Continents at Silfra: Thingvellir's Crystal Fissure Experience

Float between continental plates in the crystalline waters of Silfra at Thingvellir National Park. This guided snorkeling tour pairs a PADI divemaster and thermal drysuit with GoPro photos, delivering an otherworldly small-group experience just outside Reykjavík.

Thingvellir, Southwest
3 hours (total), 30–45 minutes in water
By Adventure CollectiveOctober 2025

The Experience

Before You Go

Arrive Early and Check Roads

This is a self-drive meeting point at P5 Thingvellir; check roads.is (especially in winter) and arrive 20 minutes early to sign waivers.

Dress in Layers

Even with a drysuit you’ll want warm base layers and a windproof outer layer for before and after the water.

Expect Very Cold Water

Water temperature is about 2–4°C; the drysuit is mandatory and you should be comfortable wearing a snug suit and hood.

Book Off-Peak Times

Silfra is busiest in summer — early-morning or late-afternoon departures mean fewer people and better light for photos.

Local Knowledge

Hidden Gems

  • Walk the short trail to Öxarárfoss waterfall nearby for great birdwatching and fewer crowds
  • Visit the visitor centre’s archaeological exhibits to learn about the Alþingi meeting sites

Wildlife

  • Arctic char in clear streams
  • Passerine birds like meadow pipits and wagtails

Conservation Note

Silfra’s clarity is fragile; the site is regulated to limit impact — follow guide instructions, don’t apply sunscreen before entering, and pack out all waste.

Thingvellir hosted the Alþingi from 930 AD and remains a core site of Icelandic national heritage where law and landscape intersect.

Photographer's Notes

Best times:Early morning, Late afternoon, Overcast midday for soft light
Key viewpoints:
  • Entry ramp where rock meets water — for suit-up portraits
  • From the shoreline looking down the fissure to capture the color gradient
Subjects to capture:Underwater blue channels, Dry-suit portraits with volcanic plains, Close-ups of lava-formed rock and underwater flora

What to Bring

Warm base layersEssential

Wool or synthetic layers keep you warm before and after the snorkel.

Waterproof jacketEssential

A windproof shell is handy for the cold open plain and changing areas.

Sturdy shoesEssential

Gravel and rock require closed, grippy footwear when walking to the entry point.

Small dry bag

Protects phone, keys, and spare layers while you’re in the water.

Common Questions

Do I need to know how to dive to snorkel Silfra?

No scuba skills required; snorkeling is surface-only but you must be comfortable floating and able to swim.

What is the water temperature and will I be warm?

Silfra stays around 2–4°C year-round; drysuits, thermal undersuits, hoods and gloves are provided to keep you insulated.

How long is the tour and how long am I in the water?

The total booking is about three hours, with roughly 30–45 minutes of actual time in the fissure.

Is transport provided?

This is a self-drive tour; there are no public buses to the meeting point, so you must drive your own vehicle.

Are photos included?

Yes — guides provide GoPro underwater and surface photos and will email them after the tour.

Who cannot participate?

Not suitable for pregnant people, those with serious cardiovascular or certain medical conditions, or anyone over 69 without a doctor’s note; all participants must complete a medical form.

Book This Experience

Check Availability

Duration

3 hours (total), 30–45 minutes in water

Location

Thingvellir, Southwest

Difficulty

moderate

Fitness Level

Participants should have moderate fitness, be able to swim, and comfortable in cold water; some mobility on uneven ground required

Free cancellation available

Ready to Explore Thingvellir?

Book your guided walking tour and discover the hidden stories of this historic mountain city.

Check Availability & Book Now