California-based photographers Colin Delehanty and Sheldon Neill spent more than ten months backpacking across Yosemite National Park to create this stunning five-minute time-lapse video of the park in all four seasons.
Yosemite HD II is their second time-lapse video of the national park. The first, Yosemite HD, was published in 2012 after three months of shooting. But they knew they could do better.
After 200 miles (320 kilometers) and a total of 45 days in the park, they finally captured what Yosemite means to them. In order to do this, they had to get off the beaten path.
National Geographic asked them to guide viewers through the video and point out the difficult-to-reach places of Yosemite National Park.