K2 is the second-highest mountain on Earth. It is located in the Karakorum segment of the Himalayan range, on the border between the Gilgit- Baltistan region of the Pakistan administered Northern Areas and the Taxkorgan Tajik Autonomous County of Xinjiang, China. However, those who climb K2 must acquire entry via Pakistan as the Chinese side is inaccessible.
Climbing routes and difficulties
There are a number of routes on K2, of somewhat different character, but they all share some key difficulties: First is the extreme high altitude and resulting lack of oxygen: in fact there is only one third as much oxygen available to a climber on the summit of K2 as there is at sea level. Second is the propensity of the mountain to extreme storms of several days’ duration, which have resulted in many of the deaths on the peak. Third is the steep, exposed, and committing nature of all routes on the mountain, which makes retreat more difficult, especially during a storm. Despite many tries there has been no successful ascent during the winter.

       
Name of Peak K-2 Elevation: 8611-m (28,251 ft)
Duration: 60 Days  Other Names  Chogori and Mount Goldwin Austen
Ranked:  2nd (1st in Pakistan) Base camp height 5135-m
Longitude: 76° – 31 E Best Period: June – August
 Latitude:  35°– 53 N  First Ascent July 31, 1954 Achille Compagnoni Lino Lacedell
DAY ITINERARY
Day-01 Islamabad: Welfare meeting in Alpine Club of Pakistan
Day-02 Drive to Chilas on Karakorum highway 11-12hrs 461km
Day-03 Drive from Chilas to Skardu along with Indus River 8-9hrs 290km
Day-04 Drive to Askoli 6-7hrs 3000m
Day-05 Trek to Jhola 5-6hrs 3200m
Day-06 Trek to Paiyu 6-7 hrs 3450m
Day-07 Free day in Paiyu
Day-08 Trek to Urdukas 7-8hrs 4050m
Day-09 Trek to Goro-II (5-6hrs) 4380m
Day-10 Trek to Concordia 5-6hrs
Day-11 Trek to base camp 4-5 hrs
Day-12/49 38 days for climbing Activities
Day-50/55 Trek down to Askoli 
Day-56 Drive to Skardu 5-6 hrs
Day-57 Drive to Chilas 8-9hrs
Day-58 Drive from Chilas to Islamabad 11-12hrs
Day-59 Farewell meeting in Alpine Club of Pakistan
Day-60 Transfer to Islamabad airport for international flight