Gjabakkahellir (a.k.a. Helguhellir or Stelpuhellir ('Girl cave')) is a lava tube, located in the area of Thingvellir National Park.
Gjabakkahellir formed around 9000 years ago. With its many beautiful lava formations and ice sculptures, it is considered a prime example of an Icelandic lava tube, offering breathtaking sights.
Explore the depths of Iceland on a lava cave tour.