Eravikulam National Park, spread over an area of 97 sq km, lies along the crest of the Western Ghats in the Idukki district. Owing to its enormous ecological value, the park was upgraded from a sanctuary to a national park in the year 1978. The whole park area is divided into three regions- core, buffer and tourism area. Tourists are allowed only in the tourism area, which can be conveniently explored by either a trek or a safari in the forest department vehicles. The park is the origin of some of the large and pristine rivers in Kerala and Tamil Nadu. Anamudi, the highest peak in South India, stands majestically in the core area of the national park.

The park is home to the largest population of the endangered Nilgiri Tahr (mountain goat). It is also inhabited by other rare animal species like Nilgiri Marten, Dusky Striped Squirrel, Small-Clawed Otter, Ruddy Mongoose, Leopard, Tiger and Indian Bison. Red Disk Bushbrown and Palni Fourwing are among the 100 endemic butterflies that can be spotted in this ecosystem. With 120 beautiful species of birds, including Nilgiri Pipit, Black and Orange Flycatcher, Nilgiri Wood Pigeon, Kerala Laughing Thrush, White Bellied Shortwing and Nilgiri Verditer Flycatcher, this region is a paradise for ornithologists, as well.

The shola grasslands of this park are notably rich in Balsams and Orchids. Also, found here is the Neelakurunji flower which blossoms only once in 12 years. The last time it grew was in 2006. While one part offers scenic views of streams, hills and colourful shrubs, the other part gives a thrilling experience of watching wild animals like Tigers and Panthers. Owing to its diverse attractions, this site is one of the most frequented tourist spots in Munnar.