The name Sunderbans is perhaps derived from the term meaning 'the forest of sundari' (Heritiera fomes), a reference to the large mangrove tree that provides valuable fuel. Along the coast, the southern part of the forest passes into a mangrove swamp, which has numerous wild animals and crocodile-infested estuaries. It is one of the last preserves of the Royal Bengal tiger and the site of a tiger conservation project.
 
Sunderbans is the largest estuarine delta in the world and the biggest colony of the Royal Bengal Tigers. These evergreen mangrove forests pulsate with myriad forms of life, which hide during hide tide and the ebbing tide reveals them on the glistening mud flats. The land is split by numerous rivers and water channels all emptying into the Bay of Bengal.

The tigers of Sunderbans are known to be mostly man eaters- mainly because of the lack of other suitable prey in the area- and the entire estuary have become, over the past decades, a place where you have to be on the alert all the time. Hunters, honey-collectors and fishermen from the neighbouring areas wander through the sanctuary throughout the year, and there is an average of 40 mauling a year.