Keenjhar Lake commonly called Kalri Lake is in Thatta District, Sindh, Pakistan. It is 122 km from Karachi and 18 km from the town of Thatta.

It is the second largest fresh water lake in Pakistan and an important source of drinking water for Thatta District and Karachi city.

Kalri Lake has been declared a Ramsar site (a wetland site designated of international importance under the Ramsar Convention) and a wildlife sanctuary.

It provides a favorable habitat of winter migratory birds like ducks, geese, flamingos, cormorants, waders, herons, egrets, ibises, terns, coots and gulls.

It has been observed as a breeding area of the black-crowned night heron, the cotton pygmy goose, purple swamphen, and pheasant-tailed jacana.

Kalri Lake is a popular tourist resort. A large number of people visit it daily from Karachi, Hyderabad and Thatta to enjoy picnic, swimming, fishing, and boating.

The Sindhi legend of Noori Jam Tamachi took place around the lake. There is a shrine in the middle of the lake marking Noori's grave.

Every day, hundreds of devotees visit the shrine.