Access, year-round operations, and cold-water planning details.
Silfra
Freshwater fissure dive in Thingvellir National Park.
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.
Research Estimate At Silfra
Conservative baseline from public research. No community dives logged yet.
Where Is Silfra?
Silfra Planning Details
Depth range, seasonality, and planning context.
Reported Depth
0m - 18m
Depth Note
Shallow lagoon sections lead into deeper fissure passages; park rules cap diving at 18 m and prohibit overhead or cave penetration.
Best Season
Year-round; shoulder seasons are quieter, while summer is busiest.
Typical Conditions
Crystal-clear freshwater with visibility often exceeding 100 m due to natural filtration through lava rock.
Safety & Access At Silfra
Hazards, restrictions, and access requirements.
Key Hazards
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.
Local Intel For Silfra
Community notes to help plan your visit.
Scuba
Guided scuba dives move slowly through the fissure and finish through the shallow lagoon, so buoyancy and trim matter more than speed.
Freedive
Freediving here is a cold-water, low-current experience that rewards calm buoyancy and careful thermal protection.
Snorkel
Guided snorkeling is a common way to see Silfra, with the same clear water and cold-water protection needs as the dive experience.
Silfra Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Silfra.
Exposure Profile at Silfra
Directional shelter context for incoming swell.
Wildlife at Silfra
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Silfra
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At Silfra
Average conditions based on logged dives & visits.
Silfra Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Silfra Guide - Sources and Updates
Last Updated
Research Sources
Site structure, clarity, and freshwater dive framing.
Wildlife scarcity and cold-water operational notes.
Park homepage with diving permission and parking notices.
Official Silfra overview with geology, visibility, and current history.
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