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Three brothers from Nepal are going for the Explorers' Grand Slam.
To achieve this, they have to climb the highest mountains on every continent and reach both the poles.
The eldest brothers Chhang Dawa and Mingma Sherpa completed their journey to the South Pole.
They were joined by their younger brother to climb 4,892 metres to the top of Mount Vinson.
The two eldest brothers are the first siblings in the world to have climbed 14 of the world's highest mountains.
At 19, Tashi Lakpa, their youngest brother, was the youngest person to climb Everest with no additional oxygen.
The Sherpa people, from the valleys of Everest, traditionally work as guides, helping visiting climbers in the Himalayas.
But now, they are the main stars.
In 2021, a group of Nepali climbers made the first winter climb up the second highest mountain in the world, K2.
This shows off their climbing skills.
However, to get the Explorers' Grand Slam, the Sherpa brothers have got five more peaks to climb and the North Pole to reach.
They are positive they can achieve this in one year.
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