Dimmuborgir (“the dark castles” in Icelandic) is a surreal, unusually shaped lava field composed of volcanic caves and rock formations resembling an ancient collapsed citadel. It is frequently cited as being one of the most striking naturally-formed landscapes in a country filled with exceptional scenes– that’s saying something. It is consequently one of Iceland’s most visited attractions.
Although Dimmuborgir recently gained worldwide popularity after being featured in the acclaimed TV show Games of Thrones, it has long been part of Icelandic folklore. Indeed, Dimmuborgir is said to be the home of homicidal troll Grýla, her husband Leppalúði and their mischievous sons the Yule Lads; the story of this psychopathic family has been told to Icelandic children for centuries now as a means to get them to behave.
Moreover, Icelandic folklore says that Dimmuborgir connects earth with the infernal regions, and is rumored to be the very place where Satan landed when he was cast from the heavens. But contrary to popular beliefs, the Dimmuborgir area was not born out of divine intervention; science has a more plausible explanation. It was formed about 2,300 years ago during a volcano eruption caused by the Þrengslaborgir crater row. Lava started flowing in the area, forming a massive lava pool in the process and bringing water from nearby marshes to a boil. The vapor resulting from this chemical reaction created lava pillars that measured up to a few meters in diameter. But eventually the reservoir’s top crust collapsed under the lava’s weight, miraculously leaving the hollow pillars that we see today completely intact.
Dimmuborgir is located just east of Lake Mývatn, 90 kilometers (55 miles) southeast of Akureyri. It can be reached via route 1 in just over an hour. Many day trips to the Diamond Circle include Dimmuborgir.