A sport above the clouds

Pakistan has a unique mountain landscape, where the Himalayas, Karakoram, and Hindu Kush ranges converge and have different characteristics.

It is home to five of the 14 peaks higher than 8,000 metres, collectively called the eight-thousanders, including two of the most beautiful mountains in the world: K2 and Nanga Parbat.

Compared to the sea level, the partial pressure of oxygen in the air, reflecting the oxygen concentration, is around half at 5,000m and only a third above 8,000m...