Wular Lake, One of the largest fresh water lakes in Asia, is in Bandipora district in the Indian state of Jammu and Kashmir. The lake basin was formed as a result of tectonic activity and is fed by the Jhelum River. The lake’s size varies seasonally from 12 to 100 square miles (30 to 260 square kilometers). Boating, water sports and water ski have recently been launched by the Government of India Tourism in collaboration with Kerala Tourism and J&K Tourism.
In recognition of its biological, hydrological and socio-economic values, the lake was included in 1986 as a Wetland of National Importance under the Wetlands Programme of the Ministry of Environment and Forests, Government of India for intensive conservation and management purposes. Subsequently in 1990, it was designated as a Wetland of International Importance under the Ramsar Convention.

Source: https://en.wikipedia.org/wiki/Wular_Lake