Krafla includes one of the two best-known V#237;ti (the icelandic term quot;v#237;tiquot; means quot;hellquot;) craters of Iceland. The crater V#237;ti has a green lake within.br/br/Krafla is a caldera of about 10#160;km in diameter with a 90#160;km long fissure zone, in the north of Iceland in the M#253;vatn region. Its highest peak reaches up to 818 metres and it is only 2km in depth. There have been 29 reported eruptions in recorded history.