The Meenachil River, also known as Kavanar, originates at vagamon in the Western Ghats of Kerala, flows westward through Erattupetta, Palai, Kidangoor, Ettumanoor and Kottayam. Its length is about 87 kilometers. Near Kottayam it splits into a number of distributaries before emptying into the Vembanad Lake. Kumarakom, the bird sanctuary and tourist resort is on one such branch.