The Gangetic River Dolphin is common in the rivers. Its beauty lies in its unique natural surroundings. Thousands of meandering streams, creeks, rivers and estuaries have enhanced its charm. Sundarban is the natural habitat of the world famous Royal Bengal Tiger, spotted deer, crocodiles, jungle fowl, wild boar, lizards, theses monkey and an innumerable variety of beautiful birds. Migratory flock of Siberian ducks flying over thousands of sail boats loaded with timber, golpatta, fuel wood, honey, shell and fish further add to the serene natural beauty of the Sundarban.