This weekend, a mountaineering legend will take on one of the world’s greatest walks to raise awareness of one of Earth’s biggest challenges.

Apa Sherpa, who has climbed Mt. Everest a staggering 21 times, will walk 1,062 miles in 120 days to raise awareness of global warming. You can read all about it in this Reuters article, but we just want to say two things: 1, Go Apa! and 2, We are now officially dreaming of the Great Himalayan Trail.

Here’s part 1 of a three-part video on the GHT. You’ll find links to subsequent parts on YouTube: