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Swim in Iceland’s Hidden Treasure: The Bubbling Sands of Litlaá

Discover Litlaá, a geothermal river near Iceland's Arctic Circle, where warm waters and bubbling sands create a mesmerizing snorkeling experience.

Litlaá, or "Little River," is a geothermal marvel just south of the Arctic Circle, near Iceland’s northern coast. This unique river stays a balmy 12-17°C year-round, thanks to the area’s geothermal activity—making it a surprising yet perfect spot for snorkeling.

Formed in 1976 during the Krafla volcanic eruptions, Litlaá is fed by unusually warm springs, blending with cooler waters from nearby Lake Skjálftavatn. The result? A shallow, lagoon-like river with gentle currents that’s ideal for exploring at your own pace.

Beneath the surface, you’ll find nature’s artwork—dancing volcanic sands and vibrant sediments that ripple and shimmer as heated water bubbles up from below. Known as “bubbling sands,” this hypnotic sight is truly something to behold. Among these sands, lush green algae add a splash of color, creating a serene underwater paradise.

Litlaá is also known as "Snail Lagoon" due to the abundance of snails calling it home. It’s a hotspot for wildlife, including trout, so don’t be surprised if you spot a few locals during your snorkel!

Conveniently located on the Diamond Circle, Litlaá is just 30 minutes from Húsavík, Iceland’s whale-watching capital, and close to stunning sites like Ásbyrgi Canyon. Make it part of your self-drive adventure, along with iconic stops like Goðafoss (Waterfall of the Gods), Dettifoss, and the enchanting Lake Mývatn.

This hidden treasure is waiting to be explored—grab your snorkel and dive into Iceland’s magic!

Availability
Summer
Difficulty
Easy
Duration
2.5 hours
Minimum age
12

TourID: BST

Activity provider: Dive.is

Need to know

Participants are not allowed on tour without signing the Snorkeling Silfra Medical Statement and, if necessary, a physician’s approval which can be found on the second page of the Medical Statement document. Please read the Snorkeling Silfra Medical Statement prior to booking to make sure that you are eligible for the tour. Each participant must sign our liability release form at the start of the tour.

Please bring with you: long thermal underwear, thick socks, suitable clothes for the weather of the day, if you wear glasses, please bring contact lenses or your own prescription mask if you have one.

Requirements

  • have read, signed, and followed directions on the Snorkeling Silfra Medical Statement
  • sign our liability release form at the start of the tour
  • be between 150cm and 200cm in height
  • be between 45kg and 120kg in weight
  • fit within our dry suit size chart
  • be minimum 12 years of age on the year
  • be comfortable in the water and be able to swim
  • be physically fit
  • be ready to wear a sometimes tight and constricting dry suit
  • be able to communicate in English or have a translator available at all times during the tour
From €145/person
  • Flexible Cancellation
  • No Booking Fees

Tour itinerary

Bubbling Sands Snorkeling Tour

What’s included and what to bring on this tour

It’s important to always be prepared for your next adventure in Iceland. See our list of what’s included, and what you should bring or add to your trip

See full equipment list

Included

  • Guided snorkeling trip
  • All necessary snorkeling equipment including a dry suit
  • Hot chocolate and cookies after the snorkeling trip

Not included

Food and drinks

Tour highlights

Litlaá River
FAQ

Are you wondering about something?

If you're planning a trip to Iceland, it's important to be prepared with the right information. Here are some frequently asked questions (FAQs) to help you plan your trip

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