Follows Martin Strel as he attempts to cover 3,375 miles of the Amazon River in what is being billed as the world's longest swim.
Lightshow pictures
The Last Forest
River of Gold
Fall 2
Un fleuve invisible
Auf der Oder
Sherwood Park
River's End: California's Latest Water War
Mystery of the Nile
Iwianch, the Devil Deer
Faire des vagues