Our most recommended things to do in Selfoss

Silfra: Fissure Snorkeling Tour with Underwater Photos

1. Silfra: Fissure Snorkeling Tour with Underwater Photos

Snorkel at a site that National Geographic called one of the top dive sites in the world with this tour of the Silfra Fissure in Þingvellir National Park. Stay warm as you explore this magical underwater glacial world with a high-quality dry suit. Swim through pure, filtered glacial meltwater. Keep your eyes peeled for local plant species and marine life like the dwarf char. Explore the valley where the tectonic plates of North America and Europe drift further apart every year, located in the UNESCO World Heritage Site of Þingvellir National Park.

Raufarhólshellir Lava Tunnel: Underground Expedition

2. Raufarhólshellir Lava Tunnel: Underground Expedition

Begin the experience at Raufarhólshellir lava tunnel and explore one of the longest and best-known lave tubes in Iceland. As the tunnel is a work of nature, the terrain can be quite rough and hard to maneuver. Follow the route of the footbridge with your guide as they explain the geological formations. Marvel at the ever-changing colors, landscape and geological formations. Hear entertaining tales of Hollywood adventures and other enjoyable tidbits about the cave's history. Enjoy approximately 1 hour of pure adventure.

Silfra: Snorkeling Between Tectonic Plates, Meet on Location

3. Silfra: Snorkeling Between Tectonic Plates, Meet on Location

Enjoy a snorkeling tour of the Silfra Fissure in Thingvellir National Park, a UNESCO World Heritage Site and one of the wonders of the famous Golden Circle route. Float between two tectonic plates in the clearest water in the world with 300 feet, or 100 meters, of visibility. Once you arrive at Silfra, you will be divided into groups of 6 people, one group per guide. Gear up in a wetsuit to keep you warm and comfortable in the cold water. After a safety briefing, make your way to the entry platform to spend about 45 minutes in the water. Float through what is called the Big Crack, Silfra’s narrowest section where the continental plates are so close you can almost touch them. The fissure then widens into Silfra Hall. If you look from the right angle, you can see all the way to lake Thingvallavatn, over 150 meters away.  Enter the Silfra Cathedral at the depth of 23 meters and feel like you’re flying over the boulders and glacial silt. End the snorkeling adventure at the Silfra Lagoon. Enjoy hot chocolate and cookies to warm up. Chat with your guide and ask any questions you might have.

Iceland: Complete Island Self-Guided Audioguide

4. Iceland: Complete Island Self-Guided Audioguide

With the Iceland complete audio guide, you get all the information that a tour guide would otherwise give you. Using GPS, the app recognizes where you are on your round trip and provides you with exciting information in the right places. So nothing stands in the way of your individual rental car tour. Your digital Iceland travel guide for the whole island of fire and ice! This audio guide offers more than 340 stations (7.5 hours of playing time) with information about the country, people, and sights in all parts of the country. It includes not only the Ring Road and the Golden Circle but also the Reykjanes and Snaefellsnes Peninsulas, the Westman Islands, the East and West Fjords, and the wild Icelandic Highlands.

From Reykjavik: Golden Circle & Blue Lagoon Small Group Tour

5. From Reykjavik: Golden Circle & Blue Lagoon Small Group Tour

Discover Iceland's iconic Golden Circle route on this guided bus trip from Reykjavik. Visit the historic Thingvellir National Park, watch a geyser erupt at Strokkur, marvel at Gullfoss Waterfall, and journey to in the world-renowned Blue Lagoon. Board a climate-controlled bus in Reykjavik and relax on the drive to visit the best place on earth to view the North Atlantic Divergent Ridge at the Thingvellir National Park. See eruptions of up to 20 meters high at Strokkur, which erupts every 5 minutes. Take in views of the magnificent Gullfoss waterfall which is considered the most beautiful of Iceland’s 30,000 waterfalls. Pay a visit to the stunning volcanic crater at Kerið and admire it from above at a viewpoint.  End your day with a relaxing soak in the soothing waters of the Blue Lagoon. Be sure to reserve your admission ticket for the Blue Lagoon for 5:00 PM, as the tour will arrive at that time. After you finish at the Blue Lagoon, head back to Reykjavík and be dropped off at the meeting point where your tour began.

Hellisheiði Geothermal Plant: Exhibition with Audio Tour

6. Hellisheiði Geothermal Plant: Exhibition with Audio Tour

Discover how Iceland produces green, sustainable energy at the Hellisheiði Geothermal Energy Exhibition in Selfoss. This self-guided tour will allow you to see the front lines of Iceland‘s work toward environmental sustainability and the history of geothermal energy in the country. Your experience begins at the Hellisheiði Power Plant, located roughly 20 minutes outside of Reykjavík. The power plant is located beneath Mount Hengill and is surrounded by lava fields, moss, and scenic mountain landscapes. Start your self-guided tour by making your way through the interactive exhibition with commentary from your informative audio guide. Experience first-hand how green, sustainable energy is produced at the largest single-site geothermal power plant in the world. Included in your tour is a stop in the Carbfix room, where you will learn about the plant‘s partnership with Carbfix. Carbfix is one of the leading solutions for the climate crisis and global warming. Throughout your visit, take advantage of the viewing platforms inside the exhibition that let you get an even better look at the beautiful Icelandic nature. You are also welcome to ask the on-site staff any questions you might have during your tour.

Volcano Exhibition and Cinema - Lava Centre Iceland

7. Volcano Exhibition and Cinema - Lava Centre Iceland

Journey through the geological history of a nation as you explore the fiery heart of Iceland at awarded Lava Centre overlooking the great volcanoes of Eyjafjallajökull, Katla and Hekla. Learn by using interactive displays and videos. Become immersed in an experience that blends education with artistic displays of the various natural forces that created Iceland. Go to the Trembling Earth section and learn how diverging tectonic plate movements and rising magma cause frequent earthquakes. Experience the drama of a simulated earthquake. In front of the Fiery Heart of Iceland display, learn about the normal up-flow of magma at the diverging plate boundaries and how they interact with a mantle plume (hot spot) beneath Iceland, pin-pointed in the central highlands. Once the gaseous molten rock in the earth’s crust and mantle, known as magma, is expelled during a volcanic eruption, it is termed lava and tephra (airborne material). There are 30 volcanic systems in Iceland containing many types of volcanoes, with a strong impact on nature and the rapidly developing landscapes. In the Magma Learning Center, get an insight into many volcanic structures. Tephra forms when magma encounters water or ice, or if the gaseous magma is very viscous. The magma splinters into pieces of various sizes that may spread over large areas. Get a panoramic view of 4 large, active but dormant volcanoes and a group of volcanic islands in the Local Volcano section, or from the viewing deck. All are of a different type and nature, and two of them are among the most active and productive volcanoes in Iceland!   

From Reykjavík: Small Group South Coast Day Tour

8. From Reykjavík: Small Group South Coast Day Tour

This tour brings together everything the Icelandic southern coast has to offer in the form of waterfalls, a black beach, basalt rocks, glaciers and volcanoes. We begin our adventure driving by the charming agricultural town of Selfoss, where the Viking Trail unfolds before us. As we venture further south, the enchanting lowland vistas gradually give way to majestic mountainous panoramas, unveiling a breathtaking display of nature's grandeur. Our first stop is the awe-inspiring Skógarfoss, a dramatic masterpiece that plummets an impressive 60 meters. Here, we pause to relish in the magnificence of Mother Earth's artistry, capturing a moment that will forever be etched in our memories. Continuing along the Viking Trail, we then make our way to the captivating black sand beaches of Reynisfjara. The mighty North Atlantic crashes against the ebony shores, creating a symphony of power and beauty. Take your time to explore this dramatic wonderland, immerse yourself in its captivating atmosphere, and be captivated by the indelible image that unfolds before you. Our next destination is the charming coastal town of Vík í Mýrdal. This unique gem, untouched by harbors, offers a panoramic vista that stretches beyond the village, encompassing the mesmerizing coastal tapestry that unfolds before our eyes. From the vantage point of its charming church, capture a moment of tranquility and beauty that will forever hold a special place in your heart. Continuing our journey, we then head towards the awe-inspiring Sólheimajökull glacier. As our adventure draws to a close, we make our final stops at the iconic Seljalandsfoss and the hidden gem of Gljúfrabúi. Seljalandsfoss entices with its ethereal beauty, allowing you to venture behind its cascading curtain of water, an experience that will leave you in awe. And nestled discreetly within the mountainside, Gljúfrabúi unveils its hidden splendor, inviting you to discover its secret charm. With your heart full of memories and your camera filled with captivating photos, we return to Reykjavik, where you can reflect upon the magnificent scenery that this tour has offered. Join us on this unforgettable journey, where every stop unveils a new chapter in the story of Iceland's South Coast.

Selfoss: Golden Circle Rafting Tour

9. Selfoss: Golden Circle Rafting Tour

Discover a mix of serene canyons and adrenaline pumping waves and rapids on this group rafting tour in the Golden Circle from Selfoss. Enjoy the natural wonder of Gullfoss waterfall and Brúarhlöð canyon on this 7 kilometer route. See views that you can only get by boat. Stay warm with a wetsuit and safe with a life-jacket. Navigate the water with trained guides that can cater to all levels of rafting expertise, so no previous rafting experience is required. Try an exhilarating cliff dive into the river. Bask in epic views of the Icelandic wilderness before warming up in a Finnish sauna and hot tub. Choose to order a cold beverage, or grab a bite to eat at the River restaurant after working up an appetite paddling.

Volcano Movie - Experience the Latest Eruptions in Iceland

10. Volcano Movie - Experience the Latest Eruptions in Iceland

The movie starts with a historic overview of eruptions in Iceland and then goes through the latest eruptions in Iceland. Only footage in the highest possible quality is used, shot in 4K or better. There is no vocal narrative (voice-over) - only video and sound, presenting a story that will leave you breathless due to the forces of Icelandic nature. The movie starts with a short overview of the eruptions in Iceland, starting with the Katla eruption in 1918, Hekla in 1947, Askja in 1961, Surtsey in 1963, the Westman Islands in 1973, Krafla in 1975, and many more. Finally, you will learn about 2010 and the Fimmvörðuháls eruption followed by Ejafjallajökull which blocked all air traffic. You will also find out about the Grímsvötn eruption in 2011 and Holuhraun in 2014-2015 and the latest eruptions in Fagradalsfjall or Fagradalseldar as we call the series of eruptions. You will leave with a better understanding of the magnitude of these eruptions and what effects it has on the inhabitants of this rugged island.

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What people are saying about Selfoss

Overall rating

4.8 / 5

based on 1,540 reviews

Fantastic experience! It was very cold (-18'C) but the Troll team did a great job getting us all kitted out as quickly as possible. They recommended at least 2prs of socks but there is plenty of room in the dry suit boots. After Juan's safety brief and geology lesson we needed hot water to melt the ice out of our masks and got in the water ASAP. Juan was right about many things; look around above the water as well as below, turn on your side to see under the surface, your hands do warm up inside the gloves and he took great pictures. The drysuits did a great job keeping us warm, although they had started to freeze before we walked back to the trucks. The team worked hard to get us out of the frozen suits. I loved every moment of the trip.

As a 50+ woman never having snorkelled before, let alone in Iceland in December, I was very apprehensive but this turned out to be the most amazing experience of a lifetime and once suited up I didn’t even feel the cold! Luce was an amazing guide and talked us through each step patiently.

This was an awesome experience! Our tour guide Juan was great & very funny. My husband & I & our 2 teens had an experience of a lifetime! Thank you to the entire Troll team.

Amazing experience and one you will never forget, Andreas was a fantastic guide and really knowledgable

Very informative. Excellent guide, not too many steps so kids will be fine doing this too.