Húsavík: Bubbling Sands Snorkeling Tour is an experience that truly stands out in Iceland’s lineup of outdoor adventures. It offers a chance to snorkel in a surprisingly warm, geothermal lagoon just south of the Arctic Circle, where dancing sands and green algae fields create a surreal underwater landscape. For those interested in combining nature, geology, and a splash of adventure, this tour offers a memorable glimpse into Iceland’s lesser-known natural wonders.
What I particularly appreciate about this experience is how it balances fun and education. First, the guides—like the friendly and knowledgeable instructors from Dive.is—make everyone feel at ease, especially newcomers to snorkeling. Second, the unique geological features like the bubbling sands make the lagoon feel almost otherworldly. However, a potential consideration is that the tour operates only in July and August, so planning ahead is essential. If you’re visiting outside these months, you’ll need to look for other adventures. This is a well-organized, small-group outing that delivers both spectacle and comfort in equal measure.
Key points / Takeaways
- Warm geothermal waters provide a comfortable 20°C swimming experience, even in Iceland’s cool climate.
- Bubbling Sands create mesmerizing underwater eruptions, offering a surreal scene for snorkelers.
- The lagoon’s green algae fields and multicolored sediments add vibrant color to the underwater environment.
- Guided tours are small and personal, with a maximum of 8 snorkelers per guide, ensuring safety and attention.
- Post-snorkeling, a river float offers relaxing views of the surrounding nature, culminating in a delicious hot chocolate and cookies.
- This activity is not suitable for pregnant women, non-swimmers, or those with certain health issues, so check your own limits first.
Entering The Geothermal Lagoon: Setting the Scene
Starting at the modest location of Keldunes, you’ll meet your instructor and gear up for what feels more like a magical adventure than a typical outdoor activity. The guide, likely someone like Siggi or Ásta, will give a safety briefing, emphasizing that the water temperature hovers around 20°C—warm enough that most people won’t need wetsuits, just a swimsuit and warm clothing for after. This makes it accessible to a broader range of travelers who might shy away from cold water.
The short walk from the meeting point to the lagoon itself reveals Iceland’s raw, untouched landscape. Once at the lagoon, it’s hard not to be captivated by the sight of the water, steaming gently in the summer sun, hinting at the geothermal activity beneath. It’s one of those rare moments where geology becomes tangible—a bubbling, lively planet at your fingertips.
You can also read our reviews of more tours and experiences in Husavik.
What Makes the Lagoon Special
Snorkeling here isn’t just about seeing fish; it’s about witnessing a geological phenomenon. The bubbling sands are caused by geothermal activity—imagine underwater eruptions of sand and sediment, creating a hypnotic, dancing display. Some sands look like miniature eruptions or underwater beaches, and the constant motion makes them visually captivating.
The lagoon’s green algae carpets parts of the floor, providing a stark contrast to the multicolored sediments and highlighting the diversity of life in this geothermal oasis. According to one review, the green algae “looked like something from a different planet,” and I can see why—these underwater fields are both strange and beautiful, giving snorkelers a glimpse into nature’s unusual side.
Underwater Wildlife and Fish
The lagoon is teeming with life, including countless sticklebacks that swim in large groups near the rocky edges. These tiny fish are easy to spot, and some guides mention that Brown Trout patrol the waters, preying on the sticklebacks. If you’re lucky, you might catch sight of a majestic Brown Trout or even Arctic Char downstream near the river float. Several reviews praise the clarity of the water, making the fish visible and the experience more engaging.
Snorkeling Experience: What to Expect
Once you’re suited up, your guide will lead you into the shallow waters of the lagoon. The sensation of floating over the dancing sands and green algae is unlike anything else in Iceland. The constant movement of the sands creates an almost hypnotic effect, and the vivid colors of sediments, plants, and algae turn what could be a simple snorkel into a voyage of discovery.
The guides do an excellent job of ensuring everyone is comfortable, providing all necessary equipment. Most participants find the water warm enough to snorkel without heavy wetsuits—this is a big advantage, especially if you’re not a seasoned swimmer. The experience lasts about an hour, enough time to explore multiple areas of the lagoon.
The River Float and Post-Snorkeling Relaxation
After the underwater adventure, you’ll hop onto a short river float that takes you downstream, offering peaceful views of Iceland’s lush landscape. The river, Litlaá, is fed from nearby Skjálftavatn lake, which adds to the sense of being in a living, breathing environment. Many reviewers highlight how calming and scenic this part of the tour is—a perfect way to relax after the excitement of snorkeling.
The tour concludes with a warm treat: hot chocolate and cookies, served in a cozy setting that feels like an Icelandic countryside retreat. It’s a simple but thoughtful touch that leaves you with a cozy feeling and a sense of satisfaction after your aquatic adventure.
Price and Logistics: Worth the Cost
At around 2.5 hours, including gear-up and the river float, this tour offers good value considering the intimate group size—limited to 8 participants. The price includes all snorkeling equipment and guidance, which simplifies planning and ensures safety. Since transportation to the site is not included, you’ll need to arrange your own ride from Húsavík, but the starting point is just a short drive past the Keldunes Guesthouse, making it accessible.
Because the tour operates only in July and August, booking early is recommended. The small group setting and personalized attention make this experience feel exclusive without the hefty price tag associated with some guided tours.
Who Is This Tour Best For?
This experience is ideal for travelers who love nature and are curious about geological phenomena, yet prefer a manageable, comfortable snorkel adventure. It’s perfect for those who want something a little different from Iceland’s more common experiences like whale watching or glacier hikes. However, non-swimmers and pregnant women should skip this activity; safety guidelines advise against participation for certain health reasons.
If you’re comfortable in the water and enjoy discovering unique landscapes beneath the surface, you’ll find this tour both fun and enlightening. It’s also a great option if you’re traveling with family members who might be new to snorkeling but eager to try something extraordinary.
The Authenticity and Atmosphere
What makes this tour stand out is its genuine connection to Iceland’s volcanic and geothermal identity. It’s not a canned tourist trap but a chance to see how geothermal activity shapes the landscape underwater. The guides, who are friendly and clear, add a personal touch—reviewers often mention how their enthusiasm and local knowledge enhanced the experience.
The size of the group keeps the experience intimate, enabling better safety and interaction. Many travelers comment on the peacefulness of floating down the river afterward, which offers a perfect closing to an active morning.
Summary: Is It Worth It?
If you’re seeking a rare, sensory-rich experience that combines geology, nature, and adventure, the Bubbling Sands Snorkeling Tour is a standout option. It’s especially right for those who enjoy being in the water but prefer a warm, accessible environment—no heavy wetsuits required. The small-group format, knowledgeable guides, and the surreal landscape make this tour a true highlight of a trip to Húsavík.
While the limited operation months mean you’ll need to plan carefully, the beauty and uniqueness of the lagoon often outweigh the logistics. Plus, the included hot chocolate and cookies are a simple but appreciated reward after your underwater exploration.
This experience offers excellent value for travelers wanting to see a different side of Iceland—one of bubbling sands, geothermal magic, and tranquil river views.
Frequently Asked Questions
How long does the tour last?
The entire experience lasts approximately 2.5 hours, including gear setup, snorkeling, and the river float.
What should I bring?
Bring warm clothing and swimwear. Wetsuits are usually provided, and the water is warm enough for most people to snorkel comfortably.
Is it suitable for non-swimmers?
This tour is not recommended for non-swimmers, as safety guidelines specify it’s not suitable for people who cannot swim.
Can I participate if I’m pregnant?
No, the activity is not suitable for pregnant women.
What is the best time of year to do this?
The tour operates in July and August, when the weather and water conditions are favorable.
What is included in the price?
All necessary snorkeling equipment, a guided tour, and post-snorkeling hot chocolate with cookies.
How many people are in each group?
Groups are limited to 8 participants, providing plenty of personal attention.
Do I need to book in advance?
Yes, due to the small group size and seasonal operation, it’s best to reserve ahead—payment can be made later, offering flexibility.
To sum it up, the Bubbling Sands Snorkeling Tour in Húsavík offers a rare chance to explore Iceland’s geothermal wonders in a relaxed, friendly setting. It balances adventure with comfort and provides a distinctive way to experience the country’s volcanic landscape. If you’re eager to see something truly different and enjoy a bit of underwater magic, this tour is a worthwhile addition to your Iceland itinerary.