Iceland's extraordinary geothermal features and massive glaciers make it not only a playground for extreme adventurers, but also a nation that has harnessed its geothermal energy like no other has. George meets the President of Iceland, Olafur Grimmsson, who has spearheaded the use of geothermal power in the country, and visits geothermal sites such as the Blue Lagoon and the country's famous geysers. He then explores the largest glacier in Europe, the volcanically active inland of Haimaey, and the Vatnajokull Lagoon, where he climbs one of the huge icebergs calving off the glaciers.