Backwaters of Kochi  are a chain of brackish lagoons and lakes lying parallel to the Arabian Sea coast (known as the Malabar Coast) of Kerala state in southern India. In Cochin, the stretch from Kochi Azhi to Munambam Azhi, the serene backwaters are popularly known asVeeranpuzha. It is the northern extension of Vembanad Lake. Vembanad Lake (Vembanad Kayal or Vembanad Kol) is India's longest lake, and is the largest lake in Kerala. It is also one of the largest lakes in India.