4. Sundarbans National Park One of the largest and oldest national parks in India, Sundarbans National Park is in the extremes of West Bengal. The Sunderbans are also known for their freshwater humid forests, which provide the best weather conditions for the growth of mangroves. It is one of the biggest mangrove forests as well. Apart from the variety of magnificent flora, the park also plays host to the Royal Bengal Tigers. As per the officials, the park comprises large endangered species of tigers, deers and various other animals. 5. Eravikulam National Park Any trip to Munnar is incomplete without visiting Eravikulam National Park which houses a rich variety of flora and fauna. The national park is a UNESCO World Heritage Site and one of the most scenic national parks in south India, the Eravikulam National Park is a haven for endangered animals in India like the Nilgiri Tahr, Nilgiri marten, and the small-clawed otter. This national park is famous for its ravishing beauty which is being spread across a sprawling 97 sq. km of Kannan Devan hills. Anamudi is the highest peak in South India is also situated there.