After selecting a departure time, make your own way to Iceland's UNESCO-listed Thingvellir National Park and greet your guide at the information office.
Here, receive all the equipment necessary for snorkeling, including dry suits to wear over your clothes, and receive a thorough safety briefing from your PADI-certified instructor.
Once you feel ready to plunge into the turquoise waters surrounding the Silfra Fissure, don your snorkel and swim in the crystal-clear water. Gaze to the bottom of the 82-foot (24-meter) ravine, which bridges the gap between the North American and Eurasian tectonic plates.
Throughout your snorkeling experience, receive personalized attention in a small group of 10. Conclude at your original departure point in Thingvellir National Park.