All volcano eruptions I have visited were extremely spectacular. But the two eruptions of the Eyjafjallajokull in Iceland in 2010 (lava flow and ash cloud) are definitely on the top of my list. They were quite accessible and relatively safe as well. If you want to see a live eruption, ...
“If the eruption does occur, there may be significant lava flows which could destroy peoples’ homes and other infrastructure, as well as block valleys and change surface drainage,” he said. Any eruption is not expected to cause the kind of ash cloud created by the Eyjafjallajokull eruption...