The most popular tourist attraction in Ladakh, Pangong lake is an endorheic (landlocked) lake situated at 4350 meters. Also known as Pangong Tso, it is 12 kilometres long and extends from India to Tibet. Almost 60% of Pangong Lake lies in the Tibetan Autonomous Region. A unique feature of the lake is that it does not remain blue throughout the year or even the day, rather it changes colours from azure to light blue to green and grey too! It is famous amongst tourists as the spot where the Bollywood movie ''3 Idiots'' was shot.
Since the enthralling Pangong Lake falls on the Sino-Indian Actual Line of Control, an inner line permit is required to visit it. The Indian Nationals can easily obtain individual permits while other foreign nationals need to obtain a group permit, with at least 3 persons in the group, accompanied by an accredited guide. The permit can be obtained at the tourist office in Leh, for a small fee. Owing to its altitude, the Pangong Lake temperature ranges from -5°C to 10°C as a result of which it freezes completely during winters in spite of its salinity.