#1 KADALUNDI BIRD SANCTUARY: Organised by the by the Eco-tourism society, Kadalundi -- India's first community reserve -- offers an eco-friendly boat ride through its mangroves. The bird sanctuary is known for the arrival of around 60 species of migratory birds from across the planet including seagulls, terns, sandpipers, turnstones etc. (Photo | A Sanesh, EPS)