Explore Iceland's Hidden Depths – Snorkel & Tunnel Tour

Arctic Adventures guides you through the fascinating Raufarhólshellir Lava Tunnel and offers a snorkeling expedition in the world-renowned Silfra Fissure, blending geological wonders with the stunning clarity of glacial waters.

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The price below does not include your discount! Use promo code AURORAPASS2025 at checkout to save 10% on all tours and activities.

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      Prepare for an extraordinary journey that delves deep into Iceland's geological wonders, beginning with the mysterious Raufarhólshellir Lava Tunnel. As you venture into this ancient subterranean world, the air is cool and filled with the earthy scent of volcanic rock. The tunnel, a remnant of an eruption over 5,000 years ago, reveals a mesmerizing tapestry of colors and intricate formations. Your guide illuminates the path, sharing tales of fiery eruptions and the powerful forces that shaped this underground marvel.

      Next, the adventure takes you to the breathtaking Silfra Fissure, nestled within the UNESCO World Heritage Site of Þingvellir National Park. Here, you will snorkel in the crystal-clear waters that separate the North American and Eurasian tectonic plates. As you glide through the glacial waters, filtered to pristine clarity by ancient lava fields, the world beneath the surface unfolds in stunning detail. The visibility extends up to an astonishing 150 meters, offering a surreal view of the underwater landscape, where vibrant shades of blue and green dance in the sunlight.

      The experience is both serene and exhilarating, as you float effortlessly in some of the purest waters on Earth. The chill of the glacial water is offset by the warmth of the hot cocoa waiting for you afterward, a comforting end to an unforgettable day. With free underwater photos capturing your adventure, this is a journey that promises to linger in your memory long after you return to the vibrant city of Reykjavík.

      Tip: Don’t forget to use your discount code AURORAPASS2025 at checkout to save 10%!