With a biodiversity index higher than the Amazon Rainforest, the Silent Valley National Park is home to numerous endangered species, including certain living fossils. Since this tropical evergreen park is completely enclosed within a ring of hills, it has its own micro-climate and receives rainfall throughout the year. The Silent Valley National Park is spread over 237-kilometre-square, one-third of which is the core forest area, while the rest is called the buffer zone.
Tourists are taken 22 kilometres into the buffer zone and only 1 kilometre inside the core forest. No private vehicles are allowed inside the park now; you have to choose between a government bus or jeep. These buses and jeeps do not move without a travel guide. The park opens at 8 am and closes at 1 pm in the afternoon, but a complete trip normally lasts a little under 7 hours. Tourists are allowed to trek down to the Kunthi river which runs through the entire length of the park. They get a bird’s-eye view from the watch tower at the end of the route.