Fly over vatnajkull and see the grmsvtn eruption site from above on this 45 minute tour from skaftafell grmsvtn is a basaltic volcano located on the northwestern side of the vatnajkull ice cap it has the highest eruption frequency of all volcanoes in iceland the most recent eruptions in grmsvtn were in 2011 2004 1998 and 1996 choose from multiple departure times to suit your schedule