Vatnajökull National Park
The Vatnajökull has a surface area of 8,100 km² Europe's largest glacier. The average thickness of the ice is between 400 to 800 m, at the thickest point the ice is 950 m powerful. The glacier ice covers a multitude of mountains, valleys and plateaus. It even covers some active central volcanoes, of which Bárðarbunga is the largest and Grímsvötn the most active. The ice masses extend from over 2000 m above sea level up to 300 m below sea level. Nowhere else in Iceland, except on the Mýrdalsjökull glacier, does so much precipitation fall or so much water flow into the sea as on the south side of Vatnajökull. In fact, so much water is currently stored in Vatnajökull that Ölfusá, Iceland's river with the largest volume of water, would take over 200 years to transport this amount of water into the sea.