Located on the shores of Vembanad Lake, Kumarakom Bird Sanctuary in Kottayam is touted as ornithologists' paradise. It will be a paradise of ornithologists only when the Siberian and other birds start arriving here in late November through late January.
I have visited the place two times. I haven't seen any birds on both occasions. Then again, I visited the place off season and I reached the place in the afternoon. Avid bird watchers (evidently I am not one) vouch to visit the sanctuary early in the morning to get a glimpse of birds leaving the nests in search of food. Maybe, I will visit this place once again while in season. In any case, the walk the paved path along the 14 acres of mangrove forest is a hearty experience.
If it is not raining, you can enjoy boating along the Vembanad Lake. There is also water routes connected to Kottayam and Alappuzha from Kumarakom. Boating is always a great experience. You can enjoy the cool tropical climate, rich water bodies, and splendid greenery.
Location @ Google Maps