Vanessa has an incredible five Guinness World Records: First, Fastest, Deepest, Farthest and Oldest. Vanessa is the first woman to reach earth’s highest (Mt. Everest 8,848m) and lowest points (Challenger Deep 10,925m).
Vanessa O’Brien is the FIRST American woman and the FIRST British woman to climb K2 (as a result of her dual nationality) leading a team of 12 members to the summit and back and the oldest woman to summit at the age of 52, the FASTEST to climb the Seven Summits in 295 days, and the FIRST to complete the Explorers Grand Slam which includes the Seven Summits plus skiing a minimum of the last degree (60 nautical miles or 111 km) to the North Pole and South Pole in 11 months (and one of only 8 women in the world to do so). Vanessa has summited five 8,000 Meter Peaks including Everest with two of those summits eight days apart and run the Boston Marathon.
Challenger Deep is at the bottom of the Mariana Trench. Vanessa became the first woman to reach Earth’s highest and lowest points after completing her dive to Challenger Deep on June 12, 2020. She is the first woman (Mission Specialist) to complete any significant bottom time – spending 3 hours mapping the Eastern Pool of Challenger Deep with submersible pilot Victor Vescovo in partnership with NOAA.
The Mariana Trench is not only deep, it is long, too. It’s 5 x the length of the Grand Canyon or 1,580 miles long (2543 km). At only 43 miles wide (70km), it is also narrow. At the very bottom of the Mariana Trench is Challenger Deep, which is the lowest point on the Earth’s crust.
To understand just how deep that is, let’s compare Mt. Everest at 29,029 feet (8,848 m) above sea level to Challenger Deep. Here we find Challenger Deep is 6,824 feet (2,080 m) deeper than Everest is tall. If Everest were put into Challenger Deep, it would still be over a mile underwater.
“Men wanted for hazardous journey to the South Pole. Small wages, bitter cold, long months of complete darkness, constant danger. Safe return doubtful. Honor and recognition in case of success.”
– Ernest Shackleton
The “Eight Thousanders”
There are fourteen 8,000 meter peaks (> 26,000 feet) in the world. They all reside in the Himalayas with borders between Nepal, Tibet and Pakistan. One of the 8,000 meter peaks I climbed, Cho Oyu (“Turquoise Goddess” in Tibetan), is the sixth highest mountain in the world at 8,201 meters (26,906 ft) above sea level. The final 8,000 meter peak I climbed, Shishapangma, is the fourteenth-highest mountain in the world and, at 8,013 m (26,289 ft)
Explorers Grand Slam Website
The Explorers Grand Slam or Adventurers Grand Slam is an adventurers challenge to reach the North Pole, the South Pole and all of the Seven Summits. The North Pole is defined as the point in the Northern Hemisphere where the Earth’s axis of rotation meets its surface. The South Pole, situated in Antarctica, is the southernmost point on the surface of the Earth and lies on the opposite side of the Earth from the North Pole. The Seven Summits are defined as the highest mountain peaks of each of the seven continents.
The official Explorers Grand Slam website was designed to bring together all participants who have completed the Explorers Grand Slam.
The Boston Marathon was a special challenge for me because I had never run a marathon, was recovering from shoulder surgery, and running goes against everything a high altitude mountaineer is taught from a conservation of oxygen point of view.
But it was for charity –and the American Red Cross at that – whose flag I had taken to the North Pole in 2013, the year of the Boston Marathon Bombings, which I dedicated to the incident. So if there was ever a marathon I was going to run it had to be Boston and it had to be for the American Red Cross, the largest and most efficient humanitarian charity in the world.