Melany Denise

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.

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.

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.

Paddleboard world champion Zeb Walsh and his team dare to be the first people to cross the Bass Strait in Australia on a paddleboard. This intense journey will include passing through Shipwreck Coast and dealing with harsh weather and sharks.

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

Adventurers seek new and extreme challenges.