Climbers attempt most difficult rock climb in the world

Sinead Moore
free-climb Yosemite
free-climb Yosemite

Two climbers are attempting the 'world's toughest ascent' in California's Yosemite National Park.

Tommy Caldwell, 36, and Kevin Jorgeson, 30, have been climbing for more than a week and are roughly halfway through the challenge, reports the Telegraph.

El Capitan's Dawn Wall, the largest monolith of granite in the world, rises more than 3,000 feet above the Yosemite Valley floor.

The two climbers are scaling their way using only their hands and feet. They are using small cracks, nooks and ledges to pull themselves up.

They use hanging tents suspended to El Capitan's Dawn Wall to eat, sleep and stretch.

The duo could be at the top as soon as Friday or Saturday if all goes to plan, according to Josh Lowell of Big Up Productions.

The duo have been keeping the world updated on their adventure via their social media accounts.

Post by Tommy Caldwell.

The climb has clearly been taken its toll on the pair with Jorgeson posting a picture of his injured fingers on his Instagram account.

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If they are successful, they will be the first to "free climb" the section using ropes only as a safeguard against falls, reports the Huffington Post.

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