Peter Edmund Hillary is a New Zealand mountaineer, philanthropist and writer. He is the son of adventurer Sir Edmund Hillary, who, along with Nepalese Sherpa mountaineer Tenzing Norgay, completed the first successful ascent of Mount Everest. When Peter Hillary summited Everest in 1990, he and his father were the first father/son duo to achieve the feat. Hillary has achieved two summits of Everest, an 84-day trek across Antarctica to the South Pole, and an expedition guiding astronaut Neil Armstrong to land a small aircraft at the North Pole. He has climbed many of the world's major peaks, and on 19 June 2008, completed the Seven Summits, reaching the top of the highest mountains on all seven continents, when he summited Denali in Alaska.