Climbing mountains may seem like a fairly common activity today, but not like this. And not this kind of mountain.

Alex Honnold is an American rock climber who spends his life traveling around the world to climb mountains. But here's the catch, he does it all without any climbing equipment - no harness, no ropes, no net. Talk about intense.

In January, Honnald climbed El Sendero Luminoso in Mexico. This mountain stands 1500 feet tall and proves itself very difficult to climb, especially without equipment to help you.

Check out a clip of the climb here: