Silfra Snorkeling: Swim Between Continents in Thingvellir National Park
Float through a fissure that separates continents—Silfra offers impossibly clear water, drysuit warmth, and a 30–45 minute snorkel among tectonic plates in Thingvellir National Park. Here’s what to expect, why the geology matters, and how to prepare.
The Experience
Before You Go
Arrive Prepared for Fitting
Provide height/weight in advance and arrive 15 minutes early so guides can fit your drysuit and undersuit properly.
Dress in Thermal Layers
Wear long thermal underwear and thick wool socks under the drysuit; the water is near freezing even in summer.
Protect Your Camera
If you bring a GoPro, use a tether and float—operators often take photos for you, so don’t rely on personal devices.
Know Medical Restrictions
Participants over 60 need a doctor-signed approval; anyone with cardiovascular issues or who is pregnant should not participate.
Local Knowledge
Hidden Gems
- •Walk the short trail to Öxarárfoss waterfall for a dramatic photo stop
- •Visit the lesser-known northern rift viewpoints for quiet views of the valley and lake Þingvallavatn
Wildlife
- •Arctic fox sightings are rare but possible in the park
- •Various waterfowl and migrating ducks on Þingvallavatn
Conservation Note
Silfra’s clarity depends on fragile filtration through lava; visitors must follow paths and not touch the moss or rock to preserve water quality and microhabitats.
Þingvellir was the site of Iceland’s Alþingi from 930 AD and is central to national identity—its rift valley has hosted lawmaking and saga-telling for centuries.
Photographer's Notes
- • Edge of Silfra Hall for dramatic overhead shots
- • Bridge viewpoints along the main trail for wide-angle rift landscapes
- • Near Öxarárfoss for waterfall-plus-rift pairings
What to Bring
Thermal base layersEssential
Keeps core heat under the drysuit in near-freezing water.
Thick wool socksEssential
Protects feet from cold and helps seal the drysuit boots.
Waterproof camera/GoPro with tether
Capture underwater clarity—secure it with a tether so it doesn’t sink in the fissure.
Warm insulated jacket for after the tourEssential
You’ll warm up quickly after exiting; a good outer layer prevents hypothermia.
Common Questions
How cold is the water at Silfra?
Water is typically 2–4°C year-round because it’s glacial melt filtered through lava; drysuits and warm undersuits are provided to keep you dry and insulated.
Do I need to be a certified diver?
No—this snorkeling experience requires basic swimming ability, not diving certification; guides accompany small groups and provide instruction.
What should I wear under the drysuit?
Long thermal underwear and thick wool socks are recommended; avoid cotton and bring layers you can put on after exiting.
Is there an age limit or medical restrictions?
Minimum age is 12; participants over 60 need doctor approval, and those with heart conditions or who are pregnant should not participate.
How long is the actual snorkeling portion?
Expect about 30–45 minutes in the water; total experience including briefing and gearing up is roughly 2–3 hours.
Where do I meet for the tour?
Meet at Silfra parking lot P5 inside Thingvellir National Park; save the GPS coordinates or offline maps as reception can be spotty.
Book This Experience
Check AvailabilityDuration
2–3 hours
Location
Thingvellir, Western Region
Difficulty
moderate
Fitness Level
Should be in good general health and comfortable swimming in cold open water; no advanced fitness required but stamina for walking and snug suits helps.
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