Ojos del Salado even in summer. Despite the generally dry conditions, there is a permanent crater lake about in diameter at an elevation of on the eastern side of the mountain. This is most likely the highest lake of any kind in the world. The ascent of Ojos del Salado is mostly a hike except for the final section to the summit which is a difficult scramble that may require ropes. The first ascent was made in 1937 by Jan Alfred Szczepański and Justyn Wojsznis, members of a Polish expedition in the Andes. Its name, meaning roughly "Eyes of the Salty One" in
David Lim (mountaineer) peripheral nerves. Paralysed from eyes down, he spent six months in hospitals, and emerged partially disabled in both legs. He returned to mountaineering, and since 1999, has led more than 15 expeditions, including the first all-Singapore ascent of Argentina's Aconcagua (6962m), and the world's third solo of Ojos del Salado, the highest volcano in the world (6893m). In summer 2005, he led the first Southeast Asian team to climb virgin peaks in the Tien Shan mountain range on the Kazakh-Kyrgyz border. The team summitted three peaks, now officially recognised as Temasek, Singapura, and Ong Teng Cheong peaks. In 2009, he