Sundarbans National Park is a UNESCO World Heritage Site located in the delta of the Ganges, Brahmaputra and Meghna rivers in West Bengal, India, and Bangladesh. It is the largest mangrove forest in the world, covering an area of about 10,000 square kilometers, of which about 4,000 square kilometers are located in India.

The Sundarbans are home to over 400 Royal Bengal tigers, as well as other endangered species such as saltwater crocodiles, Indian rock pythons, and spotted deer. The mangrove forest provides a crucial habitat for these animals, and also serves as an important buffer against cyclones and storm surges in the Bay of Bengal.

Visitors to the Sundarbans can take boat trips through the mangrove forest, where they can spot wildlife and visit small villages inhabited by fishermen and honey collectors. The best time to visit is from September to March, when the weather is cooler and drier.

Due to its unique ecology and significance for biodiversity conservation, Sundarbans National Park is a highly protected area. Human activities such as fishing, logging, and agriculture are restricted in order to preserve the delicate balance of the ecosystem.