Zanskar lies to the south-west of leh, surrounded by the Himalayan and zanskar ranges, which is the most isolated of all the trans-himalayan valley. It takes two days, with a nigh halt at kargil, to reach Zanskar negotiating the rough road beginning from kargil.Zanskar comprise two main valleys of stod (Doda chu) and lungnak (Tsarab chu)(, which converge below at padum. The valley has an area of about 5,000 square km and an elevation of 13,154 ft. the area remains inaccessible for nearly 7 months in the year. All the high passes gets closed in winters. The only alternate route out of Zanskar river, which has become a popular destiny for winter tourist hikers.it is nearly week long walk on frozen river from Zanskar to reach leh. This is popular as chadar trek.