Silfra fissure is a Famous Snorkeling Site
Silfra fissure is one of the few places in the world where plate tectonics are visible underwater. The slow separation of the continental plates has created a deep crack that fills with freshwater from Langjökull glacier.
Unlike ocean dive sites, Silfra has no tides, waves, or sediment disturbance. These stable conditions allow the exceptional clarity of the water to remain consistent throughout the year.
Snorkeling Silfra Fissure
Snorkeling Silfra fissure is the most accessible way to experience it. Participants float at the surface wearing dry suits, which allows them to stay warm while observing dramatic rock formations below.
Because snorkeling here does not require diving certification, it is suitable for first-time visitors and non-divers.
Learn more about snorkeling Silfra fissure.
Silfra Fissure Location & Directions
Silfra fissure is located inside Þingvellir National Park, about 50–55 km from Reykjavík. It sits directly on the Golden Circle route, making it easy to combine with sites such as Geysir and Gullfoss.
The crack is connected to Lake Þingvallavatn and forms part of a larger freshwater system within the park. Because the area is protected, access rules are strict and visits are guided.
Diving Silfra Fissure
Diving Silfra fissure offers a different perspective of the rift. Certified divers can descend into deeper sections and explore its three-dimensional structure.
Due to the cold water and dry suit requirements, diving here is limited to experienced divers and is always guided.
Silfra Fissure Sections
Silfra fissure is not a single uniform crack. It is series of connected sections, each with a different shape, depth, and atmosphere.
Big Crack
The Big Crack is the narrowest section and the point where the North American and Eurasian plates appear closest together. Snorkelers and divers pass through a tight corridor of dark lava rock before the fissure opens into wider spaces.
The Hall
Silfra Hall is a wider, more open section where light, depth, and color become more pronounced. The increased space allows long sightlines, making the exceptional visibility especially noticeable.
The Lagoon
The Silfra Lagoon is calmer and shallower, often appearing brighter than the other sections. Together, the Cathedral and Lagoon form the classic Silfra route followed by most tours.
The Cathedral
The Silfra Lagoon is calmer and shallower, often appearing brighter than the other sections. Together, the Cathedral and Lagoon form the classic Silfra route followed by most tours.
Top Silfra Fissure Snorkeling Tours
BY TROLL EXPEDITIONS
From $152.22 per person
This tour by Troll Expeditions is designed for travelers who want a safe, well-organized, and memorable experience. All equipment is provided, including a thermal dry suit.
By DIVE.IS
From $154.00 per person
This tour by DIVE.IS combines rare geology with professional guidance and careful planning. Swimming between two continental plates is already extraordinary, but doing so in some of the clearest water on Earth makes the experience unforgettable.
Facilities at the Site
Facilities at Silfra fissure are simple and functional. Since the site lies inside Þingvellir National Park, development is kept to a minimum to protect the environment. Knowing what facilities are available helps visitors plan ahead and avoid surprises on the day of their visit.
What to Expect When Visiting Silfra Fissure
A visit to this special place follows a clear and organized process designed to be safe and efficient. Knowing what will happen helps first-time visitors feel prepared and relaxed.
Golden Circle Route
The Golden Circle is the most popular sightseeing route in Iceland, offering travelers a chance to experience some of the country’s most famous natural and cultural landmarks in a single day. Stretching roughly 300 kilometers round trip from Reykjavík, this route is both easily accessible and filled with unforgettable highlights, making it a top choice for first-time visitors.
Silfra Water Temperature and Comfort
Cold water conditions are one of the main concerns for visitors planning a trip to the Silfra. While the water temperature remains low year-round, the experience is carefully managed to keep participants comfortable.
Best Time to Visit
The freshwater rift can be visited year-round, but the experience changes with the seasons. While water temperature stays constant, daylight, weather, and visitor numbers vary.
Safety and Environmental Protection at Silfra Fissure
The Silfra fissure lies within one of Iceland’s most protected natural areas. Strict rules apply to all activities to protect visitors, preserve the freshwater environment, and maintain the site’s unique conditions for the future.