Anamalai Tiger Reserve, located in the Western Ghats of Tamil Nadu and Kerala, India, is renowned for its diverse ecosystems and rich biodiversity. Spanning approximately 958 square kilometers, the reserve encompasses tropical rainforests, moist deciduous forests, and grasslands. It is home to a variety of wildlife, including Bengal tigers, Indian elephants, leopards, gaurs, and Nilgiri langurs. The reserve's terrain, characterized by rugged hills and valleys, is intersected by rivers like the Amaravati and Aliyar, enhancing its ecological significance. Anamalai Tiger Reserve is also recognized for its conservation efforts and sustainable tourism practices, attracting nature enthusiasts and researchers alike.

Peppara Wildlife Sanctuary, located in Kerala's Western Ghats, covers 53 square kilometers and was established in 1983. The sanctuary features diverse landscapes, including rolling hills, evergreen and semi-evergreen forests, and several rivers and streams. It is home to a variety of wildlife such as the Asian elephant, Malabar giant squirrel, and Nilgiri tahr. Bird species include the Malabar grey hornbill and other Western Ghats endemics. The sanctuary supports rich plant life, including teak, rosewood, and various grasses. Peppara is a vital conservation area within the Nilgiri Biosphere Reserve, offering opportunities for wildlife viewing and eco-tourism.

Periyar Tiger Reserve, located in Kerala, India, spans approximately 925 square kilometers in the Western Ghats. Renowned for its rich biodiversity, the reserve is home to Bengal tigers, Indian elephants, gaur, sambar deer, and a variety of bird species. The landscape features tropical evergreen and semi-evergreen forests, moist deciduous forests, and grasslands. Established as a sanctuary in 1950 and a tiger reserve in 1978, Periyar emphasizes eco-tourism with activities like guided nature walks and boat cruises on Periyar Lake. The reserve also promotes sustainable practices and community involvement in conservation, ensuring protection of its diverse ecosystems and wildlife.