Watch National Parks Adventure for Free: How to Stream the Movie Online at 123Movies. . Narrated by Academy Award winner Robert Redford, National Parks Adventure takes audiences on the ultimate off-trail adventure into the nation’s awe-inspiring great outdoors and untamed wilderness. Immersive IMAX 3D cinematography takes viewers soaring over red rock canyons, hurtling up craggy mountain peaks and into other-worldly realms found within America’s most legendary outdoor playgrounds, including Yellowstone, Glacier National Park, Yosemite, and Arches. Celebrate the 100-year anniversary of the national parks with world-class mountaineer Conrad Anker, adventure photographer Max Lowe and artist Rachel Pohl as they hike, climb and explore their way across America’s majestic parks in an action-packed expedition that will inspire the adventurer in us all.