Zangla is a town in the Zanskar Tehsil situated at a distance of around 35 km from the town of Padum. During winters, the River Zanskar which flows from Padum to Zangla freezes over completely. The ice formed is so dense that it can bear the weight of people walking on it. The sheet of ice is known by locals as chaadar. Small caves located near the ice-covered river serve as a place for travellers to camp during the night. Zangla serves as a base camp for summer trekkers there.