6.Gangasagar Mela: Climate change has registered a significant imprint on the Sagar Island in West Bengal, where the Hindu festival, Gangasagar Mela, is held every year on Makar Sankranti.
o Classified under the sand group category, along with Mahisani and Ghoramara Islands.
o Part of the Sundarbans, but lacks: Tiger habitation and Mangrove forests.
o Small river tributaries typical of the Sundarban delta.