Snapchat is a popular social app that allows users to send media that disappears after viewing. And for the first time, two professional climbers are Snapchatting their attempt to summit Mt Everest in real time.
Cory Richards and Adrian Ballinger are using the app as they ascend, so people can see the danger, dirt, and despair that comes with tackling the tallest mountain in the world.
This includes the dead bodies and human excrement that litters the mountain, but alongside this is the beauty and solitude of mountain climbing.
"We chose Snapchat because "snaps", unlike posts to Instagram or Facebook, must be posted immediately from a phone's camera. If we're successful, you'll have a complete chronicle of our journey," Ballinger said in Outside Online.
"While over 7000 ascents of the mountain have been made with bottled oxygen, only 193 have been accomplished without, and Cory and I are going to try going without, too."
Everest is one of the world's most dangerous mountains, with a death toll of more than 250.
You can watch their journey unfold by following @EverestNoFilter, and Ballinger's and Richards' personal Snapchat accounts: @adrianjb and @crichardsphoto.