Langjökull or The Long Glacier is the second largest glacier in Iceland and in Europe, about 953 km2. Langjökull is located on the West part of the highland in Iceland. The thickest part of the glacier is about 580 meters thick and the highest point is about 1,450 meters above sea level. The volume of the ice cap is 195 km3.
Many outlet glaciers run down from the glacier. The largest ones are situated on each side of Hagafell mountain. The glaciers on the North and the South side used to reach as far as the water Hvítárvatn but have retreated rapidly since the year 1900. Eiríksjökull Glacier is located to the west of Langjökulll and further southwest is Þórisjökull Glacier. Geitlandsjökull Glacier is situated on the southwestern part of the icecap and rises to the elevation of 1400 meters.
Under the North and the South side of the glacier are high tuya mountains as well as two active volcanic systems. The calderas from these volcanic system can be seen from the air and the best known is Hveravellir where some hot springs can be found in the area. To the north of the glacier Eiríksjökull is the volcanic system that produced the lava field Hallmundarhraun about 1,000 years ago and can be seen from the waterfall Hraunfossar. In this lava field Iceland’s longest cave can also been found, Surtshellir. The volcanic system in this area have only erupted about 32 times in the last 10,000 years which is not that much in Iceland.
The Ice Cave
In 2010 a man-made ice tunnel was built beneath the glacier and tours are offered where you get the opportunity to experience the glacier from the inside. Organized snowmobile tours and tours in a modified glacier vehicles are available on the glacier and to the tunnel.