Charakusa valley and Nangma valley offer marvelous rock climbing with easy access. These valleys lie at the head of the Hushe Valley which in turn leads to the Shyok River and thence to the Indus River. Charakusa valley has some of the most beautiful mountains in the Karakoram Range situated in nearby glaciers. These jagged spires include Masherbrum 7821 m, Chogolisa 7665 m, Baltistan Peak / K6 7281 m, K7 6934 m and Link Sar which is situated at the Charakusa Glacier. The area between Sapingser and K7 base camp is a climbing paradise with ascents possible on several peaks and many unclimbed and extremely technical rock walls.
The first ascent of K6 was in 1970, by an Austrian party, via the Southeast Ridge from the Nangma Glacier.