Uniqueness of Sundarbans :

World’s Largest Delta  –  World’s Largest Mangrove Forests  –  Highly Productive Ecosystem  –  Natural Fish Nursery  – Highest Population of Tiger in the World – Recognized World Heritage Site by UNESCO, 1987).

(A) Sundarban is an unique and extremely beautiful landscape with innumerable rivers, rivulets and creeks crisscrossing the vast forest areas into many chunks of forests smaller to larger in sizes. Thus the area is approachable only on board a launch or boat to see the mangrove forests. Moreover, the wildlife can be seen only when they are in the open mud-flats.

(B)  The mud flats are exposed according to the unique tidal rhythm i.e. every 6 hours the entire Sundarban forest is inundated by the high tide. Thereafter, the saline water recedes and the mud-flats & forests are exposed.

(C) The land actually developed through the process of sedimentation, subsidence and down-wrapping of sediments. On the other hand, the tidal estuaries deposit vast amount of nutrient-rich silt in the deltaic region. Occasional thunder storm, cyclones-norwesters, storm surges and raising salinity level of rivers occur during post-monsoon season. 

Semi-diurnal type tidal inundation regulates the hydrology of the forests.