Helicopter flights to overfly the Reunion Island. The flight takes about forty-five minutes, the helicopter has to go to the sea to get high because it has to overcome on his return to the island summits of more than two thousand feet. During this flyby the calderas are volcanic island forming this Mafate, Cilaos and Salazie, formed after the collapse of the volcano Piton snow. Since the helicopter better appreciate volcanoes, Piton de la Fournaise, the Piton des Neiges. The Piton de la Fournaise volcano is the eighth busiest in the world and the last major eruption was in 2007 and delighted locals, the island increased by 25 square kilometers, the volcano is not dangerous and the lava going out to sea by a zone not occupied.