Belinda Washington

Explorer Ness Knight attempts to ride her fat bike 1,000km through Namibia's remote northern region. She has no room for error on her most ambitious adventure yet.

Three adventurers set out on an expedition across the remarkable landscapes of Greenland, towing a kayak across the ice cap to a river's headwaters and kayaking down to the Arctic Ocean.

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.

A group of adventurers using wooden canoes tries to cross the Torres and Bass Straits, two sunken land bridges off Australia.

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.

In Mission Stratos, Felix Baumgartner ascended to 128,100 feet in a stratospheric balloon and made a free fall jump.