Get a glimpse of how it feels to experience gravity-defying ski slopes, flying underwater, zip lines over spectacular canyons, sandboarding, hoverboard flights, and all those dazzling sports some call ‘extreme’. This category honors the brave in their crazy travels, literally living life on the edge. Just don’t try too much of this stuff at home.
In october 2010, the volcanologist Geoff Mackley came up with the crazy idea of descending into the Marum volcano which was active at that time. He gathered a team and went to Ambryum Island, Vanuatu, in an extreme adventure to approach as much as they could of the boiling caldera.…