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. Situated south of Calcutta, Sunderbans is one of the most unique ecosystems in this part of the world and is dominated by mangrove forests. Situated at the mouth of the Ganges, Sunderbans spreads over 54 islands and two countries (the West Bengal state in India and Bangladesh) and is a part of the world's largest delta region. A UNESCO world heritage site, Sunderbans is home to the largest number of wild tigers in the world.

The most unique feature of the Sundarbans is the tigers in the park apt at swimming and are strictly amphibious! The Park is also famous for its conservation of the Ridley Sea Turtles. The other wild animals found in the Sundarbans National Park are estuarine terrapins, Olive Ridley turtles, estuarine crocodiles, Ganges dolphins, water monitors and a wide variety of birds, fish and crustaceans. One of the major tourist attractions is the Sajnekhali Visitors' Centre, which has a crocodile enclosure, a shark pond, a turtle hatchery, and a Mangrove Interpretation Centre.

Climate
The region has a tropical climate with hot summers and cold winters. Maximum and minimum temperatures during the summer are 42°C and 37°C respectively. In winters, the maximum and minimum temperatures are 29°C and 9.2°C respectively.

Flora
In April and May, the flaming red leaves of the Genwa bejewel the emerald islands. The other dominant floral species in the Sundarbans are crab like red flowers of the Kankara and the yellow blooms of Khalsi. As you go deeper into the Sundarbans forests, you discover the mystique beauty. The large floral population in Sundarbans consists of trees like Genwa, Dhundal, Passur, Garjan and Kankara. Apart from these trees, the tall and wide Goran trees cover almost the entire region.

Best time to visit
Sunderbans is during winters between September and March. There are regular bus services from Calcutta to this place. But the main areas of the sanctuary can only be accessed only by riverine waterways. The best and the safest way to visit Sunderbans is on conducted tours. One can also avail the services of the private vessels from Canning, Gosaba or Basanti.

How to reach

• By Air
  Dum Dum (166kms), is the nearest airport at Calcutta.
• By Rail
  The nearest railhead is at Canning, 48 km away. The nearest town is Gosaba, 50 km away. Sunderbans is accessible only by riverine waterways. From Calcutta there are suburban trains to Canning and buses to Namkhana, Raidighi, Sonakhali and Najat from where motor launch services are available for Sunderbans.
• By Road
  Means of road transport are available from Calcutta for the places like Namkhana (105 km), Sonakhali (100 km), Raidighi (76 km), Canning (64 km), and Najat (92 km), which are all near the Sunderbans and have access to the riverine waterways leading to it.