sherpa

"Kami Rita Sherpa needs no introduction. He is not just a national climbing hero, but a global symbol of Everest itself," expedition organiser Seven Summit Treks said in a statement.

That record still belongs to Lhakpa Gelu Sherpa, who climbed from base camp to the summit in 10 hours and 56 minutes in 2003 – but he did this after acclimatising on the mountain.

Nima says he hopes his successes will make people more aware of how important Sherpas are to climbing.

On each trek the young athlete was accompanied by his climbing partner, Pasang Nurbu Sherpa.

It is home to many record-holding Sherpa mountaineers, including Sherpa Tenzing Norgay, the first person to climb Mount Everest along with explorer Edmund Hillary.