Some truly amazing new stars and guests of Running Wild! This season we take it up a level! Officially the most challenging season ever on Running Wild With Bear Grylls we have ever done... and it all starts July 25th at 9/8c on National Geographic. Are you ready? #RunningWild #adventure #challenge #nevergiveup @natgeo @natgeotv @natalieportman @aplusk @simuliu @robriggle @florencepugh @anthonyanderson