Lava Tunnel Caving & Snorkeling in Silfra with Transfer | Free Photos

Exploring Iceland’s Hidden Wonders: Lava Tunnel Caving & Snorkeling in Silfra

If you’re visiting Reykjavik and craving an adventure that combines underground exploration with world-class snorkeling, this tour is a fantastic pick. For $325 per person, you’ll spend about 6 to 7 hours discovering Leidarendi lava cave and floating in the Silfra Fissure—a unique spot between tectonic plates. The experience is designed for active travelers who want a taste of Iceland’s geological drama without the hassle of planning multiple trips.

What we love most about this tour is its balance of adventure and comfort—a small-group setting with knowledgeable guides ensures you get plenty of personalized attention. Plus, the hot chocolate at the end adds a cozy touch after the chilly underwater swim. Another highlight is the amazing scenery you’ll encounter both underground and above ground, with lava formations and stunning mountain views.

A possible consideration is that the tour involves crawling through tight spaces and requires a minimum height and weight, so it’s not suitable for everyone. Also, the weather can impact the lava caving portion, so check the forecast beforehand. Finally, travelers should be comfortable with swimming and water activities, making this tour best suited for those in good physical shape and with a sense of adventure.

This tour is perfect for adventurous couples, solo explorers, or small groups eager to experience Iceland’s geological marvels firsthand. If you’re looking for a memorable, active day that combines natural beauty, hands-on exploration, and a touch of adrenaline, this tour could be your highlight.

Key Points

• Unique combination: Caving and snorkeling for a diverse Icelandic adventure.
• Small-group experience: Ensures personalized attention from guides.
• All equipment included: Snorkeling gear, helmets, and safety equipment.
• Expert guides: PADI-certified instructors and knowledgeable caving guides.
• Authentic experience: Explore actual lava tubes and the famous Silfra fissure.
• Weather dependency: The lava caving might be canceled if weather is poor.

In-Depth Look at the Tour Experience

This small-group tour offers a perfect blend of two very different but equally striking activities—lava caving and snorkeling in Silfra. Starting early in Reykjavik, the tour provides round-trip transportation, making it a hassle-free way to explore some of Iceland’s most fascinating natural features with minimal planning. The size of the group—up to six snorkelers per guide—is ideal for ensuring everyone gets attention, especially during the more technical parts of the tour.

The Lava Cave: Leidarendi Lava Tube

Your adventure begins with a visit to Leidarendi Cave, a 900-meter-long lava tube formed by ancient volcanic activity. Here, you’ll don a caving helmet and head torch, ready for a hands-on exploration of the underground world. The cave is decorated with stalactites, shelves, and impressive rock formations, which make the experience feel like stepping into a different planet. We loved the way our guide explained the lava flow process, adding educational value to the adventure.

While the cave is free to enter, be prepared for some tight spaces and crawling, which makes it a good idea to wear clothing suitable for the weather and long pants and sturdy shoes. Several reviews mention that guides are patient and enthusiastic, making sure everyone feels comfortable navigating the low ceilings and uneven surfaces. The lava fields surrounding the cave are also worth noting—they add a surreal landscape backdrop, perfect for photo opportunities.

Snorkeling in Silfra: Between Continents

After warming up from the cave exploration, you’ll transfer to Thingvellir National Park to snorkel in the Silfra Fissure. This is where Iceland’s geology becomes a living classroom—a crack between the North American and Eurasian tectonic plates filled with crystal-clear glacial water. The water is so transparent you’ll see hundreds of feet below—a sight that justifies its reputation as one of the world’s best snorkeling spots.

Guided by PADI-certified instructors, you’ll be fitted with a dry suit, which keeps you warm despite the chilly water—most guides, like Ivan and Luis, are praised for their knowledge, patience, and friendly demeanor. One reviewer mentioned how once in the dry suit, you don’t feel the cold at all, which is a relief considering the water temperature. The process involves floating through a narrow gorge with spectacular rock formations and vibrant underwater features.

The hot chocolate served after snorkeling is a thoughtful touch, giving you a warm, cozy finish to this exhilarating activity. Many reviewers described the experience as “unbelievable,” emphasizing how the crystal-clear water and dramatic scenery leave a lasting impression.

The Value of This Tour

For $325, the tour packs in two distinct activities—each offering a different perspective on Iceland’s volcanic landscape. The all-inclusive nature (equipment, safety gear, photos) ensures you won’t need to worry about extra costs or logistics during your busy day. The small-group setting allows guides to focus on individual needs, which is especially helpful for those new to snorkeling or underground caving.

Potential Drawbacks and Considerations

While the experience is generally praised, a few points are worth considering. Due to weather conditions, the lava caving may be canceled, and refunds or rescheduling will be offered. Participants should be comfortable crawling through low or tight spaces—not ideal for those with claustrophobia or mobility issues.

Plus, clothing is not included, so you’ll want to dress appropriately—think waterproofs, warm layers, and sturdy boots with ankle support. Since glasses are not allowed, contact lenses or prescription masks are recommended. Participants over 65 or with certain medical conditions should seek medical approval beforehand.

What Travelers Say: Authentic Feedback

Many reviews highlight the expertise of guides. One reviewer said, “Ivan led us on a stunningly personal and thorough tour,” emphasizing the personalized attention. Another called the snorkeling “unbelievable” and appreciated the patience of guides Luis and Alberto.

The scenery also receives high praise. Fran_W noted how impressive the lava fields are and how, even on a dull, snowy day, the underwater experience in Silfra “immediately makes you forget about all the hassle.” The cozy hot chocolate at the end is a simple but appreciated touch, making the outing feel well-rounded.

Tips for Future Travelers

• Eat breakfast beforehand, as the tour lasts several hours and involves physical activity.
• Bring a change of clothes or extra layers for after snorkeling.
• Confirm your height and weight with the operator before the tour to ensure proper fitting of gear.
• Dress according to weather, avoiding jeans or heels.
• If you wear glasses, bring contact lenses or a prescription mask.

Who Should Consider This Tour?

This tour is best for adventuresome travelers in good physical condition who enjoy hands-on experiences. It’s particularly suited for those who want to maximize a single day in Reykjavik with geological wonders they’ll never forget. Perfect for small groups or couples seeking a personal, immersive day, it appeals to those willing to crawl through tight spaces and brave chilly water for an extraordinary view of Iceland’s volcanic heart.

FAQs

Is transportation included?
Yes, the tour provides round-trip transit from Reykjavik, making logistics simple and stress-free.

What do I need to bring?
Bring clothing suitable for the weather, including waterproofs, and a change of clothes for after snorkeling. Glasses are not allowed, so contact lenses or a prescription mask are recommended.

How long is the tour?
The total duration is approximately 6 to 7 hours, giving plenty of time for both activities and transportation.

Is this tour suitable for children?
The minimum age is 12 years, and participants should be comfortable swimming and crawling through tight spaces.

What if the lava caving is canceled?
You’ll be offered a full refund or the option to reschedule if weather conditions prevent caving.

Do I need to know how to swim?
Yes, participants must know how to swim and be comfortable in water to enjoy the snorkeling.

Are safety equipment provided?
Yes, all safety gear, snorkeling equipment, and underwater photos are included in the price.

Can I participate if I have medical restrictions?
All participants must fill out a medical form. Those over 65 or with medical concerns should consult a doctor beforehand.

What is the group size?
Small groups of up to 6 snorkelers per guide and up to 8 in caving groups ensure personalized attention.

Final Thoughts

This Lava Tunnel Caving & Snorkeling in Silfra tour offers an exciting, memorable way to experience Iceland’s geological marvels. The combination of underground lava exploration and floating between continents provides diversity that keeps the day engaging from start to finish. Guides are praised for their knowledge, patience, and friendliness, making even first-time cavers and snorkelers comfortable.

The value comes not just from the activities themselves but from the inclusion of all gear, safety, and photos, plus the small-group environment that allows for a more intimate experience. It’s a great choice for those who want authentic adventure without the hassle of organizing separate excursions.

While weather can be a factor and physical activity is involved, most travelers who enjoy active pursuits or are curious about Iceland’s volcanic landscape find this tour well worth the effort. Whether you’re celebrating a special occasion or simply want a day of discovery and fun, this tour will likely be a highlight of your trip to Iceland.

In summary, if you’re looking for a unique, hands-on adventure that combines caving and snorkeling in one memorable day, this tour offers excellent value, expert guides, and unforgettable scenery. It’s best suited for adventure-loving, water-friendly travelers who want to see Iceland’s volcanic core from a truly immersive perspective.