Explorers: Adventures of the Century

- Season 4

(2016)

Explorer Ulla Lohmann, Climber Sebastian Hofmann and volcanologist Thomas Boyer attempt a 500m descent into the crater of the active Benbow volcano, one of only seven volcanoes in the world displaying an active lava lake.

Mitu Monteiro, a Cape Verdean kite surfer and multi-time world champion, attempts the solo crossing of the twelve volcanic islands of his native archipelago, taking on more than 730km only by man - powered means.

Mission Amazon (Subtitle) 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. It's never been attempted before and will be the most arduous and longest SUP journey ever made. For two months, using just his physical and mental strength, Charlie will have to negotiate extreme terrain, trek around impassable river rock falls, survive freezing water, high altitude, swarms of insects and suspicious local tribes. But the hardships will be worth it if he can help shine some light on one of...

Ben Stookesberry, Chris Korbulic, Benny Marr and Pedro Oliva travel to Papua New Guinea to conquer whitewater that no kayakers have navigated before: The Beriman River Gorge - one of the most significant undertakings in a kayak.

Two paragliding champions try to simulate the flight of a soaring Andean Condor from sea level up into the 5000m Peruvian mountain range.

Australian Alastair McLeod sets off on a windsurfing mission into the open ocean, searching for the fiercest wave ever surfed under sail.

"Onekotan" is a remote island with a collapsed volcano at its centre, off the coast of Kamchtachka, Russia. It is one of the most isolated places on earth. The weather is ferocious and unpredictable. The conditions are uninhabitable. For Matthias Haunholder, Phil Meier and Matthias Mayr it is the ultimate ski mountaineering expedition.

Renowned filmmaker Alister Lee, follows two top UK alpinists on a first ascent attempt in a stunning and remote corner of Alaska.

Set against the backdrop of breathtaking Patagonia, David Lama, climbing's wunderkind, sets out to climb the infamous south-east face of Cerro Torre, a Argentinian mountain once said to be the most difficult in the world.

In Mission Stratos Felix Baumgartner ascended to 128,100 feet in a stratospheric balloon and made a freefall jump rushing toward earth at supersonic speeds before parachuting to the ground.