Snorkeling in the Silfra Fissure is one of the most unique underwater experiences in the world. Located in Iceland’s Thingvellir National Park, Silfra is the only place where you can snorkel between two continental plates—the Eurasian and North American plates. Known for its crystal-clear water and mesmerizing underwater landscapes, Silfra offers an unforgettable experience for adventure seekers. In this guide, we’ll cover what you can expect, the best time to snorkel in Silfra, how to prepare, and important safety tips to ensure your adventure goes smoothly.
Why Snorkeling in Silfra Fissure is Unique
The Only Place to Snorkel Between Two Continents
One of the main draws of snorkeling in the Silfra Fissure is the opportunity to swim between two tectonic plates. This geological feature is a rare phenomenon, and you’ll literally be snorkeling in a rift between Europe and North America. The visual appeal of the underwater landscape, coupled with the knowledge of where you are, makes this an unforgettable experience.
Unbelievably Clear Water
The water in Silfra is among the clearest in the world, with visibility reaching up to 100 meters (328 feet). This exceptional clarity is due to the fact that the water is glacial melt filtered through porous lava rock over the course of 30 to 100 years. As a result, snorkeling in Silfra allows you to see every detail of the rocks, algae, and deep blue crevices below.
Cold Water Snorkeling Experience
Silfra Fissure cold water snorkeling is unlike tropical snorkeling. The water temperature hovers between 2°C and 4°C (35°F and 39°F) year-round. While this may sound chilly, don’t worry—dry suits are provided, which keep you warm and dry throughout your adventure.
Best Time to Snorkel in Silfra Fissure
Year-Round Adventure
You can snorkel in Silfra year-round, but the experience varies depending on the season.
- Summer (June to August): Summer offers slightly warmer air temperatures, and longer daylight hours give you plenty of time to explore. It’s also the busiest time of year, so booking in advance is essential.
- Winter (December to February): Winter brings a quieter, more peaceful experience, with fewer tourists. The snow-covered landscape adds a magical touch, and the water temperature remains consistent due to the constant inflow of glacial water.
- Best Time to Snorkel: The best time to snorkel in Silfra is in the shoulder seasons—spring (April-May) and fall (September-October). You’ll enjoy fewer crowds while still experiencing good weather conditions.
How to Prepare for Snorkeling in Silfra Fissure
Booking a Tour
Since the Silfra Fissure is a protected site within Thingvellir National Park, you cannot snorkel independently. You must book a tour with a licensed operator. Snorkeling tours in Silfra usually last around 2-3 hours, including briefings, gearing up, and the snorkeling session itself.
Gear Provided
Tour operators will provide you with all the necessary gear, including:
- Dry suit: To keep you dry and warm in the cold water.
- Thermal underlayer: To wear underneath the dry suit for added warmth.
- Snorkel and mask: Essential for exploring the underwater landscape.
- Fins and hood: These help you glide through the water comfortably.
What to Bring
To maximize your Iceland snorkeling experience, here’s a list of what you should bring:
- Thermal base layers: Even though dry suits are provided, you’ll want to wear a warm base layer for extra insulation.
- Warm socks: Thick, wool socks are ideal to wear under your dry suit boots.
- Towel and change of clothes: While you’ll stay dry, it’s always good to have a towel and extra clothes just in case.
- Camera: Many people use GoPros or waterproof cameras to capture the stunning underwater scenery.
Silfra Fissure Snorkeling Safety
Cold Water Safety
Although snorkeling in cold water may seem daunting, Silfra is a safe environment as long as you follow the guide’s instructions. The tour companies prioritize safety, providing equipment checks and thorough briefings before you enter the water. Be mindful of the cold, but rest assured that the dry suit will keep you warm throughout your snorkeling experience.
Physical Requirements
- Swimming ability: You don’t need to be an expert swimmer to snorkel in Silfra, but you should feel comfortable in the water.
- Age restrictions: Most tours have a minimum age requirement of 12 years old.
- Medical considerations: If you have certain medical conditions (e.g., heart problems), it’s essential to consult with your tour operator ahead of time.
What to Expect When Snorkeling in Silfra Fissure
Arrival and Briefing
Upon arrival at the snorkeling site, you’ll be greeted by your tour guide, who will provide a safety briefing and explain how to use the equipment. They will also help you into your dry suit and other gear before heading to the water.
Entering the Water
As you slowly lower yourself into the crystal-clear water, the temperature will initially take your breath away. However, the dry suit does an excellent job of keeping your body warm and dry. Once you get accustomed to the cold, you’ll begin to glide effortlessly through the fissure.
Underwater Experience
The underwater landscape is otherworldly. The deep blues of the fissure contrast beautifully with the dark lava rock, and the light filtering through the water enhances the vivid colors of the algae and moss growing on the rocks. In some places, the fissure is narrow, while in others, it opens up into large caverns. The water’s clarity allows you to see down to incredible depths, making for an awe-inspiring experience.
The Silfra Cathedral
A highlight of the snorkeling experience is the Silfra Cathedral, a massive chamber in the fissure where the visibility is at its peak. It feels like floating in space, as the water is so clear that you can see the bottom some 60 meters (197 feet) below.
FAQs About Snorkeling in Silfra
How long does the snorkeling tour last?
The entire tour typically lasts about 2-3 hours, including gear preparation, briefings, and around 30-40 minutes in the water.
Can I snorkel in Silfra if I’ve never snorkeled before?
Yes, beginners are welcome, but you should feel comfortable in the water. Your guide will give you a thorough briefing on how to use the equipment.
Is it safe to snorkel in Silfra?
Yes, snorkeling in Silfra is extremely safe. Tour operators provide high-quality gear, including dry suits, and follow strict safety protocols to ensure you have a safe and enjoyable experience.
What is the temperature of the water in Silfra?
The water temperature is consistently between 2°C and 4°C (35°F and 39°F) year-round.
Conclusion
Snorkeling in the Silfra Fissure is an adventure like no other, offering a rare opportunity to swim between two continents in some of the clearest water on Earth. Whether you’re an experienced snorkeler or a first-timer, Silfra’s underwater beauty and geological significance make it a bucket-list experience. With year-round accessibility, expert guides, and proper gear, snorkeling in Silfra is a must for any adventure seeker visiting Iceland.
