Thingvellir, is a place in the administrative district of
Bláskógabyggð in southwestern
Iceland, near the
Reykjanes peninsula and the
Hengill volcanic area. It lies in a
rift valley that marks the crest of the
Mid-Atlantic Ridge. It is at the northern end of
þingvallavatn, the largest natural lake in Iceland.
[2] Silfra - the Silfra fissure is Iceland´s most famous dive and snorkel site. In Silfra you dive or snorkel between 2 continents, with over 100m visibility. Located in the þingvallavatn Lake in the þingvellir National Park in Iceland, Silfra is a rift that is part of the divergent tectonic boundary between the North American and Eurasian plates.