Silfra: Leidarendi Lava Caving & Snorkeling Tour with Photos

If you’re eyeing an adventure that combines the wild beauty of Iceland’s underground landscapes with its renowned crystal-clear waters, this Leidarendi Lava Caving & Snorkeling Tour might just be your ticket. We haven’t done it ourselves, but from what we gather, it’s a standout experience that offers a rare glimpse into Iceland’s volcanic past and its stunning freshwater canyon.

What immediately catches our eye is the combination of caving and snorkeling—a double whammy of adventure that immerses you both on foot and underwater in some of the country’s most fascinating sights. Plus, with local guides who really know their stuff, you’re set for a day packed with expert insights and safe exploration. On the flip side, one thing to keep in mind is that this tour involves light crawling and water activity, so it’s not for those who prefer a more relaxed outing.

This experience suits travelers who love a mix of physical activity and natural beauty, those eager to explore hidden corners of Iceland, or anyone looking for a memorable photo op. If you’re comfortable in water and up for some light crawling, it’s a chance to tick off unforgettable adventures in one day.

Key Points

• Combines caving and snorkeling for a full-day Icelandic adventure
• Expert local guides enhance the experience with in-depth knowledge
• No diving license needed — suitable for anyone comfortable in water
• All gear provided, including wetsuits and drysuits, with options for snorkel gear in wetsuits for more freedom
• Limited group size (up to 6 people), ensuring personalized attention
• Includes free photos and hot chocolate, adding a thoughtful touch to the day

You can check availability for your dates here:

An In-Depth Look at the Tour Experience

What Makes This Tour Special

This is one of those excursions that promise a taste of Iceland’s volcanic soul. The Leidarendi lava tube, stretching roughly 900 meters, is a highlight—an ancient underground world where stalactites and natural shelves carve out a surreal landscape. We love the fact that the access is fairly easy, with only some light crawling involved, making it accessible for most reasonably fit travelers. Guides are seasoned and local, sharing stories about the lava’s formation over 2000 years ago, which adds a layer of context that makes the whole experience more meaningful.

Then there’s Silfra, the world-famous freshwater fissure within Þingvellir National Park. It’s about 60-63 meters deep at its lowest point and offers some of the clearest water you’ll ever see. The water is so transparent that it’s almost like swimming in an endless glass of ice-cold water. No diving experience is necessary because you’ll be snorkeling at the surface, but the clarity makes it feel as if you’re floating in an otherworldly space. We particularly like that Adventure Vikings is the only Icelandic company offering wetsuit snorkeling, which allows for greater freedom and comfort.

A Typical Day’s Breakdown

The tour kicks off with hotel pickup, which is included in the price, making logistical planning easier. In summer (March-October), pickup is between 7:30 and 8:00 AM, while in winter (November-February), it shifts slightly later to 8:00-8:30 AM—something to keep in mind if you’re not an early riser.

Once at the site, your guides will gear you up with all necessary snorkeling and caving equipment—no need to bring your own gear, which is a relief for many. For snorkeling, you can choose between wetsuits or drysuits, with a clear recommendation for wetsuits for better freedom of movement. The guides are experienced and attentive, helping everyone feel confident whether it’s your first time snorkeling or caving.

The caving segment at Leidarendi involves walking through a lava tube, marveling at formations like stalactites and shelves, with some minor crawling required. It’s considered accessible, but it’s worth noting that if you have mobility concerns, this might not be suitable. As one reviewer appreciated, guides are there to help, making the activity feel safe and enjoyable.

Following the cave exploration, you’ll switch gears to snorkel Silfra, floating over the UNESCO World Heritage site. The water’s incredible clarity offers views that really can’t be matched anywhere else in the world. You’ll be in the water for about 30-45 minutes, enjoying the surreal feeling of swimming in what seems like an endless, transparent crack in the Earth.

What’s Included and What to Keep in Mind

The price point of $295 per person might seem high, but when you consider the all-inclusive nature—gear, guides, photos, and hotel pickup—it offers good value for what you get. Many travelers appreciate the small group size (limited to 6 participants), which ensures personalized attention and a more intimate experience.

Not included are bathing suits, warm clothes, and towels, so make sure to bring these along. Also, you’ll want to eat a hearty breakfast before heading out since the tour runs for about 7 hours. Remember, you need to be comfortable swimming and communicating in English, with a weight range of 50-120 kg and height from 150 to 200 cm, making it accessible to most adults.

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The Guides Make the Difference

Based on reviews, guides like Westin and Bryndis stand out for their knowledgeability and friendliness. One reviewer mentioned how their guide answered all questions and provided extra tips, which made the experience feel very personal. Others appreciated the safety and reassurance provided during the activities, especially since the challenge level is manageable but requires some attention.

The Photos and Hot Chocolate – A Nice Touch

A highlight for many is the free photos provided after the tour—an easy way to relive the adventure without hassle. And after a chilly swim and cave exploration, the hot chocolate is more than welcome, giving you a cozy end to the day.

Who Should Consider This Tour?

This tour is ideal for adventurous travelers who enjoy a bit of physical activity and are comfortable in water. It’s not suitable for children under 12, pregnant women, or anyone with mobility issues. If you’re not a confident swimmer or are worried about crawling through caves, this might not be your best fit. However, for those who are up for a challenge and love exploring hidden natural spaces, this experience offers a fantastic mix of land and water adventures in Iceland’s unique landscape.

Travelers interested in photography will love the opportunity to capture stunning images in crystal-clear waters and an underground lava world. Plus, those who enjoy guided experiences with knowledgeable locals tend to leave very satisfied, as evidenced by glowing reviews praising their guides’ professionalism and friendliness.

Final Thoughts

All in all, the Leidarendi Lava Caving & Silfra Snorkeling Tour offers a well-rounded peek into Iceland’s volcanic and geological wonders. The combination of exploring an ancient lava tube and floating in one of the clearest fissures on Earth makes for a day packed with memorable moments. The high ratings and positive reviews reflect not just the beauty of the scenery but also the quality of guides, safety, and overall organization.

If you’re craving a hands-on adventure that’s more than just sightseeing, and you’re comfortable in the water and on your feet, this tour is a solid choice. It balances excitement with safety and provides a truly Icelandic experience that’s tough to beat.

FAQ

Is this tour suitable for children?
No, the minimum age for Silfra snorkeling is 12 years, and children under 18 should be accompanied by an adult.

Do I need previous diving or snorkeling experience?
No diving license is required. You will snorkel at the surface of Silfra and only need to be comfortable in water.

What should I bring?
Bring comfortable shoes, warm clothes, a towel, and a medical statement. It’s also recommended to eat a good breakfast beforehand.

Are wetsuits or drysuits provided?
Yes, all gear is included, and you can choose between wetsuits or drysuits depending on your preference.

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

How long does the tour last?
It runs for about 7 hours, including transportation, activities, and breaks.

Is hotel pickup included?
Yes, pickup and drop-off at hotels in the Reykjavik area are included, with specific stops in the city center.

What about photos?
Free photos are provided after the tour, so you can remember your adventure with beautiful images.

Can I cancel if my plans change?
Yes, you can cancel up to 24 hours in advance for a full refund, making it flexible if your schedule shifts.

If you’re after a day that combines Iceland’s volcanic history with its stunning, pristine waters, this tour ticks all the boxes. Just prepare well, listen to your guides, and enjoy every moment of this underground and underwater journey.

You can check availability for your dates here: