Scuba Diving and Snorkelling in Silfra fissure

Two people scuba diving in Silfra Fissure

Nested in the heart of Iceland’s unique landscape, more specifically in Þingvellir National Park, is Silfra fissure. Þingvellir National Park is a remarkable sight on its own as it has a rich history and is a UNESCO World Heritage site. Further, the national park’s area is divided between two continents, North America and Eurasia, letting visitors check two continents off the list. Scuba diving and snorkelling in Silfra fissure has become a popular tourist activity, where visitors can swim between the two continents. 


How did Silfra fissure form?

The rift of the Silfra fissure was formed in 1789 when earthquakes accompanied the movement of the tectonic plates, forming a crack between the two. As the ice from Langijökull glacier melts during the summertime, it flows down towards Silfra and gets filtered through the lava field on the way. By the time the water from Langijökull glacier reaches Silfra, it has been travelling for about 70-100 years. The fissure only keeps getting bigger and better, as it grows about 2 cm each year with the tectonic plates drifting apart. 

People snorkelling in Silfra fissure taken from above
Photo: Silfra fissure snorkelling


Plunging into the crystal clear water of Silfra

In addition to being able to easily walk between two continents, it is also possible to swim between the two. Silfra has become a mecca for scuba diving and snorkelling enthusiasts around the globe and is an extraordinary experience unlike any other. Visitors can choose to either dive or snorkel in the fissure, which is possible during both winter and summer. 

Taking a dive into the crystal-clear glacial water of Silfra, divers and snorkelers can expect to see captivating underwater landscapes with visibility exceeding 100 metres [328ft].


Snorkelling in Silfra 

Snorkelling between the two tectonic plates is a unique, once-in-a-lifetime experience.  Anyone above the age of 12 can participate and therefore there is no need to have any sort of certifications. The only thing needed is to fill out a medical form online before arrival. 

Clad in drysuits to make the experience less chilly, snorkelers float effortlessly on the water’s surface, taking in the breathtaking underwater world beneath. The slow glide through the Silfra Fissure allows participants to enjoy the sight of the colourful underwater landscape, marine life, and geological formations. Snorkelers can even drink the water as it is filtered through lava field capillaries, making it a refreshing drink at around 2°C – 4°C [25-35°F] year-round. 


How long is the Silfra Snorkel experience?

The snorkel trip is about 2.5 hours from the meetup at the diving spot. If participants choose to add the pickup and drop off from Reykjavík’s centre, the total trip is around 6 hours. Participants are in the water for about 30 minutes. 


What’s included in the Silfra Snorkelling?

The Silfra snorkel experience is for those who can swim and want to embark on a unique adventure. Participants are provided with a dry or wet suit, full snorkel gear and an introduction to the fissure and Þingvellir National Park’s history. The experienced guides explain the wonders of the lagoon and take you on a journey through the main Silfra Big Crack, Silfra Hall, Silfra Cathedral, and Silfra Lagoon. 

Some tours include a pickup from Reykjavík’s centre for an additional fee; however, choosing a tour with meetup on the spot is also available. 

At the end of the tour, participants receive images from the snorkel adventure, which the guide will snap on a GoPro underwater. So make sure to bring your largest smile and smile through the coldness.

See the Silfra snorkel tours available here.

A snorkeller at Silfra Fissure in Iceland
Photo: Golden Circle and Silfra Snorkelling Tour


Scuba Diving in Silfra 

For certified scuba divers, Silfra offers a unique opportunity to explore a unique geological underwater wonder with unmatched visibility of over 100 metres [328ft].

National Geographic has described Silfra fissure as one of the top dive sites in the world. Therefore, Silfra is  a must-visit for divers. 

The underwater landscape is a blend of deep crevices, caves and fascinating rock formations. The environment below thus resembles another world. Divers exploring Silfra can navigate the four main parts of the fissure. Those are the big crack, Silfra hall, Silfra Cathedral and the Silfra Lagoon.

The maximum depth of the dive is 18 metres [59 feet], but the average is around 5 metres [16 feet].


How long is the Silfra Dive experience?

The total trip is about 3 hours from meetup at the diving spot. If participants choose to add the pickup and drop off from Reykjavík’s centre, the whole trip is around 5 hours. 


What’s included in the Silfra Scuba Diving?

The experience is for those holding a scuba dive certification, PADI Open Water or an equivalent one, and a dry suit certification. Upon arrival, divers are equipped with drysuits to withstand the cold glacier water, ensuring a comfortable and safe experience. 

Before heading in for the dive, participants get an introduction to the unique history of the Silfra fissure and the national park before getting briefed on the dive site. The guide will provide you with all needed diving equipment before exploring the unique wonders of the fissure. 

Some tours include a pickup from Reykjavík’s centre for an additional fee. However, tours with meetups on the spot are also available. 

The surreal beauty, the geological significance, and the sense of exploration make diving in Silfra an unforgettable adventure.

See the Silfra Scuba Diving tours available here

A photo of Ants Stern and Jóna Kolbrún Sigurjónsdóttir diving in Silfra fissure in Þingvellir national park Iceland
Photo: Ants Stern and Jóna Kolbrún Sigurjónsdóttir – Diving in Silfra


The Diving and Snorkelling Experience

The Silfra Fissure brings about an adventure that lets participants step into a unique world where boundaries between continents blur. Whether snorkelling or scuba diving, the Silfra experience is a once-in-a-lifetime opportunity and testament to Iceland’s eccentric and contrasting landscape. Despite the chilly glacier water, the experiences’ rewards outweigh the challenges when participants get to explore the magic of Silfra. 


How do I get to Silfra Fissure in Þingvellir National Park?

Þingvellir National Park is located about 45 km [28 mi] from Reykjavík’s city centre. Driving to the National Park by car takes about 50 minutes via Þingvallavegur road. 

Once arriving to Þingvellir National Park visitors will need to park their car at parking lot P5. From the parking lot the cars and huts market with diving and snorkelling should be visible.

Many tours to the Silfra fissure do offer transportation from Reykjavík such as Silfra Snorkel Tour with Transfer and Golden Circle and Snorkeling Tour

Here is a map of the car park in Þingvellir National Park to get to the Silfra meeting point.


Tours to Þingvellir National Park and Silfra Fissure

For those wanting to explore Þingvellir National Park and the Silfra fissure, many tours can be embarked on. 

The Silfra Snorkel Tour with Transfer is a tour to Silfra fissure including drive from Reykjavík, a guided explanation of the national park, all equipment and the snorkel tour itself.


The Hot and Cold Snorkeling and Spa Tour combines the Silfra snorkelling with an Icelandic spa experience. After snorkelling between the two tectonic plates, participants can warm up in Laugarvatn Fontana geothermal spa.


The Hot and Cold Diving and Spa Tour is a scuba diving tour in the Silfra fissure combined with an Icelandic spa experience at Laugarvatn Fontana geothermal spa.


The Private Silfra Snorkeling Tour lets a private group snorkel between the two tectonic plates for a more intimate and immersive experience.


For those wanting to visit Þingvellir National Park and exploring the Silfra fissure without diving or snorkelling, Golden Circle Tours are a great option. The tours take participants on a journey to the three locations, Þingvellir National Park, Geysir Geothermal Area and Gullfoss waterfall.


Golden Circle and Snorkelling in Silfra can also be combined with the Golden Circle and Snorkeling Tour

Diving in Þingvellir Could Jeopardise UNESCO Status

Silfra snorkeling

UNESCO’s World Heritage Committee has asked the Icelandic government to provide information on diving operations in Þingvellir National Park, reports. The committee received a complaint about the snorkelling and scuba diving operations that take place in the park’s Silfra rift. Seven diving companies have access to Silfra, where some 76,000 divers and snorkellers take a dip each year, potentially affecting its flora and fauna, as well as its appearance.

Lawyer Jónas Haraldsson sent the letter of complaint to the UNESCO committee in early August. He states that diving operations in Silfra prioritise profit over protection and contradict the conditions UNESCO places on world heritage sites.

Iceland contains three sites that are on UNESCO’s World Heritage List. While Þingvellir is listed for its cultural importance, Surtsey island and Vatnajökull National Park are listed for their natural importance.