Eravikulam National Park, nestled in the High Ranges of the Western Ghats in Idukki district, Kerala, covers 97 square kilometers of breathtaking alpine plateau. Established in 1978 as Kerala's first national park, Eravikulam is crowned by Anamudi (2,695 meters)—the highest mountain peak in India south of the Himalayas. The park is world-renowned as the primary sanctuary for the endangered Nilgiri tahr (holding nearly half of the world's surviving wild population) and is legendary for the mass blooming of the purplish-blue Neelakurinji flower (Strobilanthes kunthiana) once every 12 years.
Location & Geography
The park comprises a high-altitude rolling plateau elevated at an average of 2,000 meters above sea level, bounded by the Anamalai Hills to the north and the Palani Hills to the east. The terrain is divided into three zones: the core zone, the buffer zone, and the Rajamalai tourism zone. The landscape is characterized by vast, undulating montane grasslands bordered by dense, stunted evergreen shola forests nestled in valley folds. Perennial streams flowing from the plateau feed the Periyar, Chalakudy, and Cauvery river systems.
Geographic & Topographic Parameters
Coordinates: 10°15' N, 77°04' E
Elevation Range: 1,200 m to 2,695 m (Anamudi Peak)
Terrain & Landscape: High-altitude rolling grasslands (montane plateau), shola forest valleys, and sheer granite peaks
Area & Establishment
Originally managed as a private royal game preserve by the Kannan Devan Tea Company and the High Range Game Preservation Association in the late 19th century to protect wild tahr from uncontrolled shooting, the area was taken over by the Kerala government in 1971. It was declared Eravikulam-Rajamalai Wildlife Sanctuary in 1975 and officially elevated to National Park status on May 19, 1978.
Significance
Eravikulam is a UNESCO World Heritage site and an irreplaceable sanctuary for montane Western Ghats biodiversity. It preserves the largest viable wild breeding population of the Nilgiri tahr anywhere in existence. Additionally, the park protects South India's highest watershed, regulating moisture and rainfall patterns across central Kerala and western Tamil Nadu.
Wildlife
Beyond its iconic tahr, Eravikulam supports 26 species of mammals. Carnivores include the Indian leopard, Royal Bengal tiger, dhole (Asiatic wild dog), and golden jackal. Herbivores include Asian elephants, gaur (Indian bison), sambar, barking deer, and wild boar. Small mammals include the dusky-striped squirrel, small-clawed otter, and the endangered Nilgiri marten.
Flagship Species: Nilgiri Tahr (Nilgiritragus hylocrius)
The Nilgiri Tahr (Nilgiritragus hylocrius), an endangered mountain ungulate endemic to the southern Western Ghats, is the living soul of Eravikulam. Out of an estimated global population of 3,000 animals, over 800 tahr live within Eravikulam. Visitors along the paved Rajamalai walking trail can observe these sure-footed wild goats—especially the majestic mature males known as 'saddlebacks' due to their silver-grey dorsal markings—grazing calmly on cliff edges just meters away.
Avian diversity boasts over 130 species, including rare endemics like the Kerala laughingthrush, black-and-orange flycatcher, Nilgiri pipit, white-bellied shortwing, and broad-tailed grass warbler. Eravikulam is also home to the giant Atlas Moth (Attacus atlas), one of the world's largest moths, and numerous endemic high-altitude frogs.
Flora & Vegetation
The park's landscape is a classic Southern Montane Shola-Grassland ecosystem. The rolling expanses are dominated by tussock grasses like Chrysopogon zeylanicus and Arundinella. Deep ravines shelter stunted shola trees including Syzygium, Rhododendron arboreum nilagiricum, Litsea, and Mahonia. Every 12 years, millions of Neelakurinji shrubs (Strobilanthes kunthiana) erupt into a sea of purple-blue blossoms that carpets entire mountain slopes.
Safari & Visiting
Eco-tourism is carefully managed within the Rajamalai zone. Visitors board eco-friendly department safari buses at the Fifth Mile entrance ticket counter for a scenic 4-kilometer uphill drive through tea plantations into the national park. From the bus terminus, visitors embark on a gentle 1.5-kilometer paved walking safari to the base of Anamudi Peak, enjoying panoramic views and guaranteed Nilgiri tahr sightings.
Safari Operational Protocols & Best Zones
Primary Gates & Sectors: Rajamalai Tourism Zone, Anamudi Base Foot Trail, Kurinji Interpretation Center
Shift Timings: 07:30 AM to 04:00 PM daily (Closed during calving season Feb 1 to Mar 31)
Booking Mechanism: Official Kerala Forest Eco-Tourism Portal (eravikulamnationalpark.in)
Best Time to Visit
The optimal visiting window is from September to January, when the plateau is lush green, skies are brilliant blue, and temperatures range from a pleasant 10°C to 20°C. Note that the park is strictly closed for 60 to 75 days every year between February 1 and March 31 for the annual Nilgiri tahr calving season. Monsoon (June to August) brings heavy rains exceeding 4,500 mm.
How to Reach
The park entrance at Rajamalai is located just 13 km north of Munnar town on SH-17. Cochin International Airport (COK, 115 km) connects globally. Aluva Railway Station (120 km) is the nearest major broad-gauge railhead. Taxis, state KSRTC buses, and private tours operate continuously between Munnar and the park gate.
Transit Connectivity Metrics
Nearest City & Gateway: Munnar (13 km) / Kochi (130 km) / Coimbatore (160 km)
Nearest Railway Station: Aluva Railway Station (AWY, 120 km) / Ernakulam Junction (130 km)
Nearest Airport: Cochin International Airport (COK, 115 km) / Coimbatore Airport (160 km)
Road Arteries: SH-17 (Munnar-Udumalaipettai road) passing by the Rajamalai safari entrance
Permits & Rules
To prevent disappointment due to strict daily visitor caps, safari tickets should be booked online in advance via the official portal (eravikulamnationalpark.in). Treks to the summit of Anamudi Peak are prohibited for general tourists to protect its fragile alpine ecology. Plastic bottles without security deposit stickers and littering are strictly banned.
Nearby Attractions
Anamudi Peak Viewpoint (Inside Park)
Breathtaking view of South India's highest mountain peak (2,695 m), rising like a giant elephant's forehead above the clouds.
Munnar Tea Museum & Gardens (12 km)
Historic tea processing factory and museum showcasing the 140-year history of tea cultivation in the High Ranges.
Mattupetty Dam & Lake (22 km)
Picturesque storage reservoir offering speedboat rides and regular sightings of wild elephants drinking at the water's edge.
Frequently Asked Questions
What is the highest mountain peak in South India located in Eravikulam?
Anamudi Peak, located inside Eravikulam National Park, stands at 2,695 meters (8,842 feet) and is the highest summit in India south of the Himalayas.
Why does Eravikulam National Park close in February and March?
The park closes annually from February 1 to March 31 to provide an undisturbed, stress-free environment for the Nilgiri tahr during their peak calving season.
What is the Neelakurinji bloom at Eravikulam?
Neelakurinji (Strobilanthes kunthiana) is a shrub that blossoms synchronously once every 12 years, turning the green hills of Eravikulam into a vast purplish-blue carpet.
How can I book safari tickets for Eravikulam?
Tickets should be reserved online in advance through the official Kerala Forest Department website: eravikulamnationalpark.in.
Sources
- Kerala Forest and Wildlife Department: Wildlife Wing: Eravikulam National Park Master Management Plan.
- IUCN / SSC Caprinae Specialist Group: Nilgiri Tahr (Nilgiritragus hylocrius) Conservation Status and Population Surveys.
- UNESCO World Heritage Centre: Western Ghats Serial Nomination: Anamalai Sub-Cluster.