The Sundarban that meets Bay of Bengal to the south, is a complex network of tidal water ways like Rivers, Creeks and Canals. Naturally two high tides and two low tides occur in the entire region in a single day.
Sunderban seems to be a floating forest when it gets partially submerged by highly saline water during the high tide. Within a few hours, the low tide makes the water to recede back to the Bay of Bengal exposing the clay beds of mudflat to the air. Tidal amplitude and fluctuations of Sundarbans is around 7 meter. This is unique feature of Sundarban National Park.