The Sundarbans was everywhere intersected by river channels and creeks, some of which afforded water communication throughout the Bengal region both for steamers and for native ships.

The park receives financial aid from the state government as well as the Ministry of Environment and Forests under various plan and non-plan budgets.

In 2001, a grant of US$20,000 was received as preparatory assistance for promotion between India and Bangladesh from the World Heritage Fund.

The tidal action deposits silts back on the channels and raising the bed, it forms new islands and creeks contributing to uncertain geomorphology.

The Sunderban mudflats[7] are found at the estuary and on the deltaic islands where low velocity of river and tidal current occurs.

The coastal active delta of Sundarban at the mouth of Bay of Bengal in Bangladesh, having a complex geomorphologic and hydrological character with climatic hazards, has a vast area of mangrove forests with a variety of flora and diverse fauna in a unique ecosystem.

The natural environment and coastal ecosystem of this Biosphere Reserve and World Heritage Site is under threat of physical disaster due to unscientific and excessive human interferences.

Conservation and environmental management plan for safeguarding this unique coastal ecology and ecosystem is urgently required.

It has specialised roots called pneumatophores which emerge above ground and help in gaseous exchange i.e. respiration.

During the rainy season when the entire forest is waterlogged, the spikes rising from the ground has their peak in the air and helps in the respiration process.

Having protection since its creation, the core area is free from all human disturbances such as collection of wood, honey, fishing, and other forest products.

[citation needed] Habitat of wildlife is maintained through eco-conservation, eco-development, training, education and research.

Seminars, workshops and awareness camps are organised in the vicinity of park to educate the people on eco-conservation, eco-development, and such other issues.

The geographical topography with hostile terrain cris-crossed by several rivers and their tributaries, long international border with Bangladesh, fishing trawlers and launches enables poaching and the cutting of wood, affecting the mangrove forests.

[citation needed] The only means of travelling the park is by boat, down the various lanes formed by the many flowing rivers.

Accommodation on land and cruise safaris are provided by Sunderban Tiger Camp, the only government-approved resort in the region.

The reserve also contains species of the fishing cat, spotted deer, rhesus monkey, and wild pig.

[17] Cyclone Aila struck Sunderban on 25 May 2009, causing damage to field camps and fringe villages bordering the reserve.

Breaches in the embankments on the village side have caused large scale flooding, leaving lakhs of people marooned in the area.

The field camps were under 12 to 15 feet of water for around seven hours, resulting in soil erosion and damage to staff quarters, generators and bamboo pilling.

There was a report of a tiger wandering inside an abandoned cattle shed in a village, which was captured and released back in the wild.

Cyclone Amphan made landfall near Sagar Island of South 24 Parganas district on 20 May 2020.

[18] The cyclone damaged "almost the entire nylon fencing" in the forest which prevents the tigers from entering the forest-fringe villages, thereby keeping a check on the man-animal conflict.

Besides the fencing, the cyclone also damaged "dozens of forest camp offices, tents, watch towers and staff quarters".

A 2015 economic assessment study of the Sundarbans estimated that the national park provides flow benefits worth ₹12.8 billion (approximately ₹50,000 per hectare of land) annually.