Sundarbans: Where Tigers Swim and the World's Largest Delta Breathes

The Bengal tiger, Panthera tigris tigris, evolved as a forest ambush predator. Almost everywhere in its range, it hunts on dry land. Not here. In the Sundarbans — the 10,000-square-kilometre mangrove delta where the Ganga, Brahmaputra and Meghna finally meet the Bay of Bengal — tigers are strong swimmers. They cross one-kilometre tidal channels, hunt crabs on mudflats, and occasionally pick off honey-collectors from behind. This is the only place on earth where this happens, and it is why the forest is named Sundarban — "the beautiful forest".

A landscape that breathes with the tide

The Sundarbans are not a normal forest. Twice every day the whole landscape is drowned: the tide rises 4–7 metres, salt water floods the roots, and the only trees that survive are the 35-odd species of mangrove that have evolved pneumatophores — pencil-like aerial roots that stick up through the mud to breathe while the rest of the tree is submerged. The forest is so waterlogged that no road has ever been built inside; everything — forest-department patrols, honey collectors, tourists, even funerals — moves by boat.

The delta is shared: 62% is in Bangladesh, 38% in West Bengal, India. Both countries have declared their portion a UNESCO World Heritage Site (India in 1987, Bangladesh in 1997). The Indian Sundarbans National Park holds roughly 96 Royal Bengal tigers — a population that survives in constant interaction with 4 million humans living on the fringes. Every year, 30–60 people are killed by tigers while collecting honey or fishing, and a roughly equal number of tigers are killed defending villages. It is the most tense tiger-human relationship on earth.

What you will actually see

Tiger sightings are rare — the forest is dense, the animals are elusive, and the core reserve is off-limits. Most visitors see fresh tiger pugmarks on mudbanks at low tide, which is almost as thrilling. Certain in abundance: saltwater crocodiles basking on mudflats, water monitors, spotted deer, wild boar, rhesus macaques, and more than 250 bird species including the largest population of masked finfoot in the world.

How to visit responsibly

• Use a forest-department registered boat — only these are allowed into the tiger zones. Permit costs ₹60 for Indians, ₹200 for foreign nationals.
• Base yourself at Sajnekhali or Dayapur for 2–3 nights — these are the main gateway villages.
• Visit the Sajnekhali watchtower and Dobanki canopy walk at dawn and dusk.
• Never disembark from the boat except at designated platforms — you are inside the forest's food chain.
• Choose community homestays (Tora's Lodge, Sundarban Tiger Camp) — revenue directly funds tiger conservation and anti-poaching patrols.

Combine with Kolkata and the rest of Bengal

The Sundarbans are 3 hours south of Kolkata by road + ferry. Pair them with a city day at the Victoria Memorial and the Belur Math — the perfect human-density contrast to the mangroves. For another Bengal flavour, head 12 hours north to the tea estates and toy-train of Darjeeling. If the tiger was your draw, compare the land-hunting tigers of Ranthambore or the one-horned rhino of Kaziranga. See all West Bengal destinations or browse the full Wild Life category.