2016年敬请关注！

简介：

NarratedbyAcademyAward?winnerRobertRedford,NationalParksAdventuretakesaudiencesontheultimateoff-trailadventureintothenation’sawe-inspiringgreatoutdoorsanduntamedwilderness.ImmersiveIMAX?3Dcinematographytakesviewerssoaringoverredrockcanyons,hurtlingupcraggymountainpeaksandintoother-worldlyrealmsfoundwithinAmerica’smostlegendaryo...