Kolby Kirk hiked 1,700 miles along the Pacific Crest Trail, for 152 days. He lost 90lbs in the process and made this great self-portrait timelapse. There's a nice little surprise at the end of the video.
Hiking in Greenland
I have a hard time conjuring in my mind an image other than a world map when it comes to Greenland.
"Impressions from a 25-day hiking and packrafting expedition through the wilderness of extreme Southern Greenland in july 2013. I started in Narsarsuaq, crossed over all the way to Tasermiut fjord, and continued with an 8-day loop east of Tasiusaq before finally paddling towards Nanortalik."