Latitude: 63°59'51.72"N, Longitude: 21°42'17.22"W
Climbers descend into the empty chamber of Iceland's Thrihnukagigur (aka. þrihnukahellir or Svartholid - The black hole) volcano.
Read more
Ed ~ þríhnúkagígur is a crater that lies in northeastern þríhnúknum, over 4 km west of skíðasvæðinu in the Blue Mountains .
