Silfra: Leidarendi Lava Caving & Snorkeling Tour with Photos

Setting out on a combined lava caving and snorkeling experience in Iceland offers something truly unique—an up-close look at the island’s volcanic heart and its pristine underwater fissures. This 7-hour adventure takes you beneath the surface through Leidarendi’s lava tubes and into the stunning Silfra fissure within Þingvellir National Park. It’s a whirlwind of natural wonders, guided by knowledgeable locals passionate about sharing their homeland’s secrets.

What makes this tour stand out? First, it’s the chance to explore two different worlds—the underground lava tunnels and the crystal-clear water of Silfra—without the need for advanced diving skills. Second, the guides’ expertise and personal touch, with reviews praising their knowledge and friendliness, truly elevate the experience. Just one thing to consider: some light crawling is required in the lava tube, so comfortable mobility helps. This adventure caters best to those who love a mix of physical activity and awe-inspiring scenery, and who are comfortable in water.

Key Points

• Two-in-one adventure: Combines lava caving with snorkeling in Silfra for diverse Icelandic landscapes.
• Expert guides: Local guides with extensive knowledge ensure safety and enrich your understanding.
• No diving experience needed: Snorkeling at the surface makes this accessible for most water lovers.
• Stunning scenery: Clear water in Silfra and fascinating rock formations in Leidarendi create picture-perfect moments.
• Small group size: Limited to six participants for personalized attention.
• All gear provided: Wetsuits, drysuits, and caving equipment are included, making it hassle-free.

A Deep Dive into the Experience

The Itinerary: From Lava Tubes to Fissures

Your day begins with hotel pickup, typically around 7:30-8:30 AM depending on the season. The transportation is comfortable and efficient, setting the tone for a well-organized adventure. Once at the activity base, you’ll meet your guides and get fitted with all necessary equipment, including wetsuits or drysuits, based on your preference.

The Leidarendi lava cave is your first stop. This 900-meter-long lava tube offers a peek into Iceland’s volcanic past. The formations inside—stalactites and natural shelves—are natural sculptures created over 2000 years ago. While some light crawling might be needed, the cave is generally quite accessible, and guides emphasize safety and comfort throughout. Reviewer Lisa mentions, “The guides helped us through every step and even went the extra mile for us when we forgot our GoPro,” showcasing their attentiveness.

After exploring the underground, you’ll head toward the Silfra fissure within Þingvellir National Park, a UNESCO World Heritage site. This freshwater crack is about 60-63 meters deep, and its famed clarity allows you to almost see end to end. You’ll snorkel along the surface of this jaw-dropping canyon, marveling at the visibility and the geological marvel of the fissure. No diving license is necessary—just a good comfort level in water and the ability to swim.

What Makes the Lava Caving Special?

The Leidarendi lava tube isn’t just a walk-through; it’s an exploration of Iceland’s volcanic history. Its rock formations are especially photogenic, and the experience of walking through a 2000-year-old volcanic conduit adds a sense of adventure and discovery. Reviews highlight the safety and friendliness of the guides, with one reviewer praising guide Bryndis for her extensive knowledge and helpful tips for the rest of their trip.

Snorkeling in Silfra: The Clear Water Wonder

The highlight for many is definitely the silky smooth water of Silfra. The water’s extraordinary clarity—so transparent you can almost see through the entire fissure—makes snorkeling here as close as you’ll get to floating in an underwater glass tunnel. The fact that no diving experience is required means most visitors can enjoy this spectacle comfortably. Adventure Vikings are the only company offering wetsuit snorkeling, which many reviewers say provides more freedom and comfort.

Will you see fish or marine life? Probably not, as Silfra is a freshwater environment, but the real star is the view, the textures of the rocks, and the feeling of being suspended in a natural marvel. The guides are very attentive, ensuring everyone’s safety and comfort, and they take photos free of charge to capture your adventure.

The Guides: Knowledgeable and Friendly

Throughout the reviews, the guides receive high marks for their professionalism and friendly attitude. Westin and Bryndis are named specifically for their expertise, patience, and readiness to answer questions. This personalized attention makes the experience far richer—learn about Iceland’s volcanic history, geology, and the significance of Þingvellir while you’re exploring.

Practical Details and Value

At $295 per person, this tour offers remarkable value considering everything included—snorkeling and caving gear, professional guides, hotel pickup and drop-off, and free photos. The small group size (up to 6 participants) ensures a more intimate experience, which is often praised by reviewers who appreciate the personalized attention.

While you’re advised to bring comfortable shoes, warm clothes, socks, and a medical statement, all the technical gear—such as wetsuits, drysuits, and caving equipment—is provided, removing the hassle for travelers. Just remember to eat breakfast beforehand, as the tour lasts around 7 hours.

Accessibility and Considerations

The tour is suitable for anyone aged 12 and above who can swim comfortably. You don’t need diving certification, and the snorkeling occurs at the water’s surface. However, the activity isn’t suitable for pregnant women, people with mobility issues, or those with certain health restrictions. The physical requirements include being between 50kg and 120kg, and 150cm to 200cm tall, making it accessible to a wide range of travelers.

Unveiling the Authentic Icelandic Nature

What makes this experience truly special? It’s the chance to see Iceland’s volcanic landscape both above and below ground. Walking through the lava tubes feels like stepping into another planet, while snorkeling in Silfra is akin to floating in a pristine, underwater cathedral. The guides’ local knowledge adds context, making each moment more meaningful.

Who Is This Tour Best For?

This tour is ideal for adventurous travelers who enjoy a mix of physical activity and natural beauty. It suits those eager to explore Iceland’s volcanic history in a hands-on way, without needing diving experience. If you’re comfortable in water and seeking a unique, photo-worthy adventure, this will likely be one of your highlights.

It’s also perfect if you prefer small, intimate groups and value guides who are experts in their field. However, it’s less suitable for those with mobility or health concerns, or travelers under 12.

Final Thoughts

This Leidarendi Lava Caving & Silfra Snorkeling Tour offers an authentic glimpse into Iceland’s volcanic past and geological marvels. The combination of underground exploration and underwater scenery provides a diverse, stimulating experience that appeals to curious travelers. The expert guides, who are praised for their friendliness and knowledge, make the adventure accessible and safe while adding layers of insight that deepen your appreciation of Iceland’s landscape.

At the price point of $295, it delivers excellent value—especially considering the all-inclusive gear, transportation, and small group setting. The stunning views, unforgettable rock formations, and crystal-clear waters are things you’ll carry with you long after the tour ends.

Whether you’re a seasoned traveler or a first-time visitor, this tour suits those looking for a memorable, hands-on adventure that showcases some of the most spectacular sights in Iceland. It’s an active, educational, and visually stunning experience that encapsulates the spirit of Iceland’s wild, volcanic heart.

FAQ

Is snorkeling in Silfra suitable for beginners?
Yes, no diving experience is required. You will snorkel at the water’s surface, making it accessible for most who are comfortable swimming.

What should I bring for the tour?
Comfortable shoes, warm clothing, socks, and a medical statement are recommended. You should also eat breakfast beforehand.

Are wetsuits or drysuits provided?
Yes, all gear is included, and you can choose between wetsuits or drysuits, with the latter offering more freedom of movement.

Can I rent a camera during the tour?
Yes, you can rent a GoPro camera for 6900 ISK to capture your experience.

What is the group size?
The tour is limited to 6 participants, ensuring a more personalized experience.

How long does the tour last?
Approximately 7 hours, including pickup, exploration, and return.

What are the age restrictions?
Participants must be at least 12 years old, with an adult accompanying children under 18.

Is the tour suitable for pregnant women or people with mobility issues?
No, this activity is not recommended for pregnant women or those with mobility impairments.

In essence, this tour packs Icelandic natural wonders into a single day and offers an adventure filled with stunning visuals, expert guides, and genuine fun—perfect for those eager to go beyond typical sightseeing.