Tom Frederic

In 2015, Charlie Head will attempt the first ever standup paddle boarding of the main water source of the Amazon, the Rio Marañón in Peru.

Adventurers seek new and extreme challenges.

Gavin McClurg and Dave Turner take on the challenge of paragliding across the nearly 700km of the Alaska Range. They face harsh weather, freezing temperatures and even starvation.

Ben Stookesberry, Chris Korbulic, Ben Marr and Pedro Oliva set out to conquer the whitewater rapids of the Beriman River in Papua New Guinea.

Where extreme cold meets extreme heat - Mt. Erebus in Antarctica, the only volcano with an exploding lava lake; Clive Oppenheimer, a volcanologist at the University of Cambridge, sets out to find the lava's temperature.

Stefan Glowacz and Chris Sharma descend into Majlis al Jinn in Oman, the second largest known cave chamber on the planet, located about 1500 metres above sea level.