Alex Honnold's ascent of El Capitan without ropes or safety gear is considered one of the greatest feats in rock climbing.
The mountain was not too high, but the thing that made him to be admired was that Alex conquered the mountain in just four hours without using any protective equipment. What he did was to pick the right place and forget the fear, for only a second, Alex would face a painful death.
Sharing this success, Alex says he started climbing at age 10. Before climbing by hand, he had climbed Mount El Capitan with protective equipment, trying to remember every cling as well as moving the body no less than 60 times in two years.
A new film 'Free Solo' depicts the months of planning and anguish that went into Honnold's four-hour climb.
The 33-year-old is widely acknowledged as the greatest free-solo climber in the world.
He shared that the climb "meant a lot".
Honnold said: "Even at the time you can see how much I’m smiling and how happy I am running back down."
He added: "I mean it’s a big experience."
The rock climber - who started out when he was 10 - did it with a rope around 60 times before attempting it without.
In the film he says: "I feel like anybody could conceivably die on any given day - soloing makes it feel far more immediate and much more present."
Documentary filmmaker Elizabeth Chai Vasarhelyi directed the documentary with her husband and professional climber Jimmy Chin.
It sound so simple. However, in September last year Andrew Foster, 32, and his wife Lucy, 28, were buried under 1,000 tonnes of falling rock as they prepared for a climb in Yosemite National park in California.
Experienced climber Andrew was instantly killed died shielding his wife Lucy from falling boulders 'the size of vehicles'.
The couple, who lived in Cardiff, were on week-long climbing trip to the US national park and Andrew was killed when 250 cubic metres of rock fell from the face of the El Capitan monolith.
Source video: The Sun
Got a story for us? Need to tell us about something amazing you’ve seen or done? Want us to investigate something? Get in touch!
Email firstname.lastname@example.org, and you could even earn money for your stories or tips.