About this guide

SilfraSnorkelingSelf.com is an independent visitor guide to snorkeling the Silfra fissure in Thingvellir National Park, written for travelers who drive themselves. We are not DIVE.IS, Troll Expeditions, Adventure Vikings, Arctic Adventures, Diving Island, any other tour operator, Thingvellir National Park or Viator, and the site name describes what we write about rather than a business. We compare the bookable tours so you can pick the right one first time.

Facts on this site are checked against Thingvellir National Park's published rules and fees, the operators' own details, the live Viator listings (including hundreds of recent guest reviews) and current visitor guidance. Prices and schedules move; when a listing and this page disagree, the checkout price wins.

The site is funded by affiliate commissions: when you book through a Viator link here, we may earn a commission at no extra cost to you. That never changes what we recommend, including pointing out lower-rated tours and the fees a ticket does not include. Details on the affiliate disclosure page.

Questions or corrections: contact us.