The Sundarbans[Sundarban Tour Booking-9051115228] is the largest single block of tidal halophytic

Halophyte

A halophyte is a plant that grows where it is affected by salinity in the root area or by salt spray, such as in saline semi-deserts, mangrove swamps, marshes and sloughs, and seashores. An example of a halophyte is the salt marsh grass Spartina alterniflora . Relatively few plant species are...

 mangrove

Mangrove

Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes N and S...

 forest in the world.
The name Sundarban can be literally translated as "beautiful jungle" or "beautiful forest" in the Bengali language

Bengali language

Bengali or Bangla is an eastern Indo-Aryan language. It is native to the region of eastern South Asia known as Bengal, which comprises present day Bangladesh, the Indian state of West Bengal, and parts of the Indian states of Tripura and Assam. It is written with the Bengali script...

 (Shundor, "beautiful" and bon, "forest" or "jungle"). The name may have been derived from the Sundari trees that are found in Sundarbans in large numbers.