The Sundarbans is the largest mangrove forest in the world. This 4,110 square kilometer ‘beautiful jungle’ is traversed by a tightly woven vein system of rivers and tributaries that have created beaches, estuaries, swamps, tidal flats, dunes and levees. 150 species of fishes, 270 birds, 42 mammals, 35 reptiles and eight amphibians call the Sundarbans home, making wildlife the primary draw for visitors.