guidetoiceland.is · Tourism
Access, year-round operations, and cold-water planning details.
Silfra
Freshwater fissure dive in Thingvellir National Park.
FreedivingScuba DivingSnorkelingShoreBeginner0m - 18m
Lake
Shore-accessed from P5 with a short walk to the entry, park parking fees, and cold-water gear required for a calm, high-visibility dive.
About Silfra
Silfra is a shore-accessed freshwater fissure in Thingvellir National Park, where divers move through clear lava-walled passages and a shallow lagoon. The site is managed under park rules and is best approached as a guided cold-water dive with careful buoyancy and thermal protection.
Safety & Access
Site Conditions
Cold waterOverhead environmentRestricted access
Safety Notes
Use drysuit-grade thermal protection, maintain buoyancy control in narrow sections, and stay out of caves or overhead spaces.
Access Restrictions
Follow the buddy rule, meet certification and drysuit requirements, and complete any required medical screening before entering.
Legal Notes
Silfra is a regulated national-park dive area, so access and behavior follow Thingvellir rules and designated entry procedures.
Where Is Silfra?
Featured Operators
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Local Intel For Silfra
Community notes to help plan your visit.
Scuba Diving
Guided scuba dives move slowly through the fissure and finish through the shallow lagoon, so buoyancy and trim matter more than speed.
Freediving
Freediving here is a cold-water, low-current experience that rewards calm buoyancy and careful thermal protection.
Snorkeling
Guided snorkeling is a common way to see Silfra, with the same clear water and cold-water protection needs as the dive experience.
Wildlife at Silfra
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Silfra
Access · 3/5Moderate entry effort
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Aquatic Life · 1/5Limited life
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Facilities · 4/5Good facilities
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Crowd / Popularity · 4/5Quite busy
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Current · 1/5No current
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Surge · 1/5Flat calm
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- VisibilityResearch estimate
- 100m
