Tourism in West Bengal is in the South Asia region of Bengal, consisting of West Bengal and its neighbouring country of Bangladesh. It is the world's largest delta, and empties into the Bay of Bengal. It is one of the most fertile regions in the world, thus earning the nickname "The Green Delta". It stretches from the Hooghly River on the west to the Meghna River on the east. It is approximately across at the Bay of Bengal. Kolkata and Haldia are the principal Indian seaports on the delta. The Acharya Jagadish Chandra Bose Indian Botanic Garden or Calcutta Botanical Garden (previously known as
Tourism in West Bengal hard enough for cars to drive on. There are many hill stations in North West Bengal, of which Darjeeling is world-famous. Others are Kurseong, Kalimpong, Rimbick, Lava and Loleygaon, Mirik and Sandakfu. West Bengal has 3.26% of its geographical area under protected areas comprising 15 wildlife sanctuaries and 5 national parks — Sundarbans National Park, Buxa Tiger Reserve, Gorumara National Park, Neora Valley National Park, Singalila National Park, and Jaldapara National Park. West Bengal also has wildlife sanctuaries and bird sanctuaries like Chintamani Kar Bird Sanctuary and Raiganj Wildlife Sanctuary. As of 2009, recorded forest area in the state is