Sundarban is the largest single block of tidal halophytic mangrove forest in the world, located in the southern part of Bangladesh. It lies on the Ganges-Brahmaputra Delta at the point where it merges with the Bay of Bengal. The forest lies a little south to the Tropic of Cancer between the latitudes 21º30´N and 22º30´N, and longitudes 89º00´E and 89º55´E. With its array of trees and Wildlife the forest is a showpiece of natural history. The forest consists of about 200 islands, separated by about 400 interconnected tidal rivers, creeks and canals.
The Bangla word ban means forest, and the name Sundarban was coined either from the forests of Sundari tree ie Sundari-ban, or from the forests of the samudra (sea) ie, Samudra-ban, or from its association with the primitive tribe Chandra-bandhe which was corrupted into Sundarban. The generally accepted explanation, however, is its derivation from the Sundari tree, the most common tree in these forests.
Climate Since the forest is located on the south of the Tropic of Cancer and bounded by the northern limits of the Bay of Bengal, it is classified as tropical moist forest. The temperatures in the Sundarbans are fairly equable than those of the adjacent land areas. The average annual maximum and minimum temperatures vary between 30º and 21ºC. High temperatures occur from mid-March to mid-June and low in December and January. Most rainfall occurs during the monsoon from May to October. Frequent and heavy showers occur from mid-June to mid-September. Often storm accompanied by tidal waves result widespread inundation and cause damage to vegetation and animal life.
In the Sundarbans the saltwater forest is situated in the south-western part where Gewa (E. agallocha), Goran (Ceriops decandra), Keora (Sonneratia apetala), Ora (S. caseolaris), Passur (Xylocarpus mekongensis), Dhundul (X. granatum), Bain (Avicennia alba, A. marina, A. officinales), and other rhizophores, and Hantal (Phoenix pelludosa) dominate. The typical mangrove species dominate the central part of the forest. The moderate saltwater forest covers most of the southern parts of Khulna and Bagerhat districts where Sundari is the dominant species.
The spectacular Royal Bengal Tiger, Spotted deer (Cervus axis), Barking deer (Muntiacus muntjak), Rhesus macaque (Macaca mulatta), Jungle cat (Felis chaus), Leopard cat (Prionailurus bengalensis), the Indian porcupine (Hystrix indica), Otter (Lutra perspicillata), and wild boar (Sus scrofa) are notable mammalian in the forest.
Most frequently visited sites in the Sundarbans include Katka, Hiron Point (known commonly as Nilkamal), Dublar Char and Tiger Point (Kachi Khali). Katka attracts tourists for its landscape and wildlife. There is a forest rest house here and an observation tower. Hiron Point also has a rest house and an observation tower. Dublar Char is an island with a beautiful beach. The other attraction of the island is the fishing activities that take place every year between mid-October and mid-February.
Its really a beautiful place to visit. I think the natural beauty of Sundarban is excellent. So, if you have enough time please visit Sundarban at least once.