Þingvellir National Park is a true natural gem and one of the most visited destinations in Iceland. Known for its breathtaking landscape, geological curiosities and important part in Iceland's history. Usually taken as the first or last stop on the classic Golden Circle.
This is where the tectonic plate boundaries can be clearly seen. The North American plate and The Eurasian plate are drifting apart about 2-3 cm per year and the continental crust is about as thin as it gets. Most of the rest of the Mid-Atlantic Ridge is below sea level where the volcanoes rise from the Atlantic ocean floor. Here, however, the skyline is jagged with volcanoes and craters and the earth's surface is torn apart by the movement of the tectonics. Some of those fissures are quite wide and water runs through them towards Thingvallavatn Lake, one of the biggest lakes in Iceland and home to the local arctic char. The source of the water is mostly Langjökull Glacier to the north-east and it takes around thirty years for the water to seep through the lava and then emerge crystal clear. The water in Silfra fissure is a popular dive site famous for the absolute clarity of its waters. An amazing experience despite the cold, just make sure you are wearing a dry suit. There's also a theory stating that right here between the two major plates is a minor plate or a piece that has broken off and that is the reason for how many volcanoes can be found in the area.
This is also where the vikings formed their national council here in 930 and thus created the oldest ongoing parliament in the world. This was based on a tribal system which was common in scandinavia and northern Europe at the time, but evolved separately in Iceland and is referred to as Althingi. Thingvellir actually means The Fields of the Parliament. This is were most major decisions in the history of Iceland have been taken from the decision to become a christian nation in 1000 ad up until the declaration of independence from Denmark in 1944. Also, one of Iceland ́s foremost painters in the 20th century Mr. Johannes Kjarval turned the combination of lava, moss and birch into his own school of abstract painting greatly admired and loved both domestically and abroad.
In recent years the area has entered popular culture as the backdrop for some scenes in the very successful TV series Game of Thrones. And right where we usually stop at Hakid might be where some of the inspiration for the look of the great wall in the series comes from.