Operated by: Troll Expeditions

Þingvellir: Snorkeling in Silfra Fissure – Top Dive Site on the Planet

Snorkel between two tectonic plates in Silfra fissure, located inside Þingvellir National Park. Glide through the world's clearest glacial waters on a 3-hour small-group tour led by a certified PADI guide, with GoPro photos included.

Duration: 3 hours
Starts From: Thingvellir
Pickup: No pickup
Minimum age: 12+
Difficulty: EASY
Season: All year
Passengers: Min 1
Travel method: Self-Drive

About this experience

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Silfra fissure, set within the UNESCO-listed Þingvellir National Park, is one of the world's most extraordinary snorkeling destinations — ranked by National Geographic among the top dive sites on the planet. This 3-hour small-group experience, operated by Troll Expeditions, lets you glide through a crack in the Earth's crust where the North American and Eurasian tectonic plates meet.

The water here is pure, filtered glacial meltwater with visibility stretching up to 100 metres, making it unlike any snorkeling environment on Earth. Your certified PADI divemaster guide will lead you safely through the fissure, pointing out the dramatic underwater geology and vivid colours unique to Silfra.

All snorkeling equipment and a dry-suit with under-suit are provided, keeping you warm and dry throughout the experience. After your snorkel, warm up with hot chocolate or tea and Icelandic chocolate bars. Your complimentary GoPro underwater photos are ready to share straight after the tour.

The meeting point is at the Troll Expeditions Silfra site within Þingvellir National Park. No hotel pickup is included; participants make their own way to the meeting point, making this tour ideal for self-drive travellers exploring the Golden Circle area.

Highlights

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Snorkel between the North American and Eurasian tectonic plates in Silfra fissure
Guided by a certified PADI divemaster in a small-group setting
Dry-suit and full snorkeling equipment provided
Complimentary GoPro underwater photos included
Warm up with hot chocolate, tea, and Icelandic chocolate after the snorkel
Located inside Þingvellir National Park on the Golden Circle route

Experience details

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Your 3-hour adventure begins at the Troll Expeditions Silfra meeting point inside Þingvellir National Park. Your PADI-certified guide will brief the group, fit everyone with a dry-suit and under-suit, and walk you through safety procedures before entering the water.

Once in Silfra, you'll float effortlessly through the fissure, surrounded by crystal-clear glacial water and dramatic geological formations. The dry-suit keeps you warm and dry despite the cold water temperature. Your guide stays with the group throughout, ensuring a safe and personal experience.

After exiting the water, hot chocolate or tea and Icelandic chocolate bars are served. Your complimentary GoPro photos from the snorkel are provided after the session, giving you a ready-made record of the experience.

Duration: 3 hours
No hotel pickup — self-drive or independent arrival required
Minimum age: 12 years
Tour conducted in English

Why choose this tour

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Troll Expeditions is a specialist operator with deep expertise in Silfra snorkeling, and their small-group format means you receive genuine personal attention from your PADI-certified guide rather than being lost in a crowd.

Everything you need is included — dry-suit, under-suit, snorkeling gear, and GoPro photos — so there is nothing extra to organise or hire on the day. The post-snorkel hot chocolate and Icelandic chocolate are a welcome touch after time in cold glacial water.

For self-drive travellers on the Golden Circle, the location inside Þingvellir National Park makes this a natural addition to a day exploring Iceland's most iconic route, with no detour required.

What’s included

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Use of snorkeling equipment Dry-suit and under-suit Underwater GoPro photos Hot chocolate or tea and Icelandic chocolate bars after snorkeling Certified PADI divemaster guide Small-group experience

Pickup point

Pickup or meeting details are confirmed during booking.

Frequently asked questions

Do I need snorkeling experience to join this Silfra tour?↓

No prior snorkeling experience is required, but you must be comfortable in water and able to swim. Your certified PADI divemaster guide will brief the group on technique and safety before entering the water. The dry-suit provides buoyancy, making it straightforward for first-timers.

How cold is the water in Silfra fissure?↓

The glacial meltwater in Silfra stays at around 2–4°C year-round. The dry-suit and thermal under-suit provided by Troll Expeditions keep your body warm and dry throughout the snorkel, so water temperature is not a barrier to enjoying the experience.

Is there hotel pickup included with this tour?↓

No hotel pickup is provided. This tour is self-meet at the Troll Expeditions Silfra meeting point inside Þingvellir National Park. It is well suited to self-drive travellers on the Golden Circle route who have their own transport.

What are the physical requirements for snorkeling in Silfra?↓

Participants must be physically fit, able to swim, not pregnant, between 150 cm and 200 cm tall, and weigh between 45 and 120 kg. The minimum age is 12 years and the maximum is 69 years. Certain health conditions require a medical waiver — see troll.is/medical for full details.

What happens to my GoPro photos after the snorkel?↓

Underwater GoPro photos taken during your snorkel are included in the tour price and provided to you after the session. No additional purchase or equipment hire is needed — they are ready to download and share straight after your experience.

Can participants under 18 join the Silfra snorkeling tour?↓

Yes. Participants aged 12 and over may join. Anyone under 18 must be accompanied by a parent or adult guardian who is also booked on the same tour. The maximum age for participation is 69 years, with a medical waiver required for those aged 60–69.