Manchar is the largest shallow fresh water Lake in Pakistan. It is situated at a distance of 18 kms from Sehwan Sharif on west side of the River Indus, in district Jamshoro. The area of the lake rise and fall with the change if seasons from little as 350 km to as much as 520 km. The lake accumulates water from numerous brooks in the Kirthar Mountains and empties them into the Indus River. Manchar is synthetic Lake, created in 1930, when the Sukkur barrage was constructed on River Indus. The lake is sustained by two canals, the Aral and the Danister from the river Indus.