Bengal tigers famously live in the Sundarbans, the vast mangrove forest spread across the Ganges Delta in India and Bangladesh. The forest reaches from India’s West Bengal to Bangladesh’s Khulna region and borders the Bay of Bengal.
The Sundarbans is shaped by tidal channels, mudflats, islands and salt-tolerant trees. Its tangled habitat is unusual for tigers: these cats swim between islands, move through brackish waterways and hunt prey such as chital deer, wild boar and rhesus macaques. They are the only tigers known to inhabit mangrove forests on this scale.
The name can refer to the broader transboundary mangrove ecosystem, while Sundarbans National Park is the protected Indian section. Bangladesh contains several additional protected sanctuaries. The larger forest is also recognized through multiple UNESCO World Heritage designations on both sides of the border.
A common mix-up is to answer with Sundarbans National Park when the question asks for the whole forest. The park is part of the Sundarbans, not a separate ecosystem. Congo Basin, Daintree and Everglades are important wetlands or forests, but they are not the famous Bengal-tiger habitat described here.