Lake Karakul or Black Lake is a deep brackish – water lake located in the Pamir Mountains in Tajikistan, within the Tajik National Park in Central Asia. It lies in a closed basin at an altitude of 3,900 meters above sea level.
It is one of the driest places in Central Asia, between October to May the lake being entirely frozen.
The story of the lake begins approximately 25 million years ago when a meteor struck the earth and formed the basin that was afterwards filled by the melt water from the surrounding mountains.
Lake Karakul features a diameter of 25 km and two basins separated by a peninsula from the south and an island in the north.
The lake attracts many tourists because of its unreal scenery and the clarity of its reflection in the water, its colors varying from dark green to azure and light blue during summer.