As a child, Bachendri Pal never dreamt of conquering mountains but a chance meeting with a climber changed all that. She applied for a mountaineering course and was chosen to be part of India’s first mixed-gender team to climb Mount Everest. On the journey, she faced icy winds, freezing temperatures and an avalanche that destroyed the camp. But finally, on 23 May 1984, Bachendri became the first Indian woman to reach the summit of Everest. It was an achievement that changed her life, as she told Jane Wilkinson. (Photo: Bachendri Pal, pictured on right, on Everest 1984. Credit: Sonam Paljor)

Michael Groom is one of the survivors of a tragic climbing expedition to Mount Everest in Nepal. In 2010, Jonny Hogg spoke to Michael Groom about the moments that went badly wrong when a storm struck the world's highest mountain on 10 May 1996. (Photo: Michael Groom on Everest in 1993. Credit: Guy Cotter)

In 1999 the body of the legendary British mountaineer, George Mallory, was found on Mount Everest. Mallory disappeared on the mountain in 1924 together with his fellow climber Andrew Irvine. In 2016, Farhana Haider spoke to Jochen Hemmleb, one of the original members of the team that discovered George Mallory's remains. (Photo: George Mallory in 1909. Credit: AFP via Getty Images)

Sherpa Tenzing Norgay had tried to climb Mount Everest, the highest mountain in the world, six times before his successful climb with Edmund Hillary in 1953. His son, Jamling Norgay, spoke to Louise Clarke about the spiritual importance of the mountain for his father, and how Tenzing Norgay saved Hillary’s life when he fell down a crevasse on the mountain. (Photo: Tenzing Norgay and Edmund Hillary. Credit: BBC)

On 29 May 1953 Edmund Hillary, climbing with sherpa Tenzing Norgay, became the first people to reach the summit of Everest. The two men instantly became famous all over the world. Edmund Hillary’s son, Peter Hillary, tells Louise Clarke about his father's heroic climb. (Photo: Tenzing Norgay and Edmund Hillary. Credit: BBC)