Idukki
Idukki – The Crown of the Western Ghats
Tucked away in the towering folds of the Western Ghats, Idukki stands as one of Kerala’s most scenic and mountainous districts. Known for its cool climate, green landscapes, and architectural marvels, Idukki is home to the first arch dam in Asia, an engineering wonder built across the Kuravan and Kurathi hills. This dam, together with those at Cheruthoni and Kulamavu, forms a massive reservoir that supports hydroelectric power and draws thousands of visitors each year.
Geography and Natural Wealth
Idukki, with its rugged terrain, vast forests, and cool hill stations, is one of Kerala's most ecologically rich regions. The district headquarters is situated at Painavu, set amidst thick forests. As a landlocked area with limited plains, Idukki's terrain is largely hilly and densely wooded, making it a biodiversity hotspot. The name "Idukki" is believed to come from the Malayalam word idukku, meaning a narrow gorge.
Cultural Diversity
The population of Idukki is culturally diverse, with a mix of Malayalam and Tamil-speaking communities, especially in areas like Devikulam, Udumbanchola, and Peermade, where many work in plantations growing tea, cardamom, and other spices. The district exhibits a blend of customs, crops, languages, and lifestyles due to its geographical diversity and migratory history.
Historical Overview
The district of Idukki was officially formed on January 26, 1972, incorporating taluks from the former Kottayam and Ernakulam districts. Historically, the region has limited recorded data, but archaeological remains such as dolmens and stone tools discovered in Devikulam and Udumbanchola suggest human activity dating back to the Stone Age.
Sites like Karikode were once administrative centers under the Vadakkumkoor kings. Ancient temples, mosques, and churches in the region testify to a long and mixed heritage. Muthalakodam church, Annamala temple, and the Ninnar Mosque are among the notable examples. Trade routes that passed through Thodupuzha facilitated exports of forest produce like ivory and sandalwood, contributing to early economic activity.
Major Tourist Attractions
Munnar
A world-famous hill station, Munnar sits 1600 m above sea level, where the Mudrapuzha, Nallathanni, and Kundala rivers meet. Once a summer retreat for the British, Munnar is now known for tea plantations, misty hills, and the rare Neelakurinji flower, which blooms once every 12 years. Anamudi, the highest peak in South India, is located nearby.
Mattupetty
Close to Munnar, Mattupetty is noted for its dairy farm under the Indo-Swiss Project and the serene Mattupetty Dam and lake, where boating is popular. The surrounding Kundala tea estates and Echo Point, known for its natural acoustic reflections, attract many visitors.
Eravikulam National Park
This protected area in Devikulam taluk is the primary habitat of the endangered Nilgiri Tahr and features high-altitude grasslands and the towering Anamudi peak.
Top Station & Marayoor
Top Station, on the Kerala-Tamil Nadu border, provides expansive valley views. Nearby Marayoor is the only place in Kerala with natural sandalwood forests, along with ancient burial sites (muniyaras) from the Stone Age.
Waterfalls: Cheeyappara & Valara
These roadside waterfalls on the Kochi–Madurai highway offer excellent trekking opportunities and scenic stops.
Wildlife and Eco-tourism
Idukki Dam – An Engineering Marvel Amidst the Hills
The Idukki Dam is one of the most iconic landmarks in Kerala and a true feat of modern engineering. Situated in the heart of the Western Ghats, this magnificent dam is built across the Periyar River, connecting two steep granite hills known locally as Kuravan and Kurathi.
This structure holds the distinction of being the first arch dam in Asia and the second of its kind in the world, making it a significant milestone in the history of dam construction.
Key Features:
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Type: Double-curvature Arch Dam
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Height: 168.91 meters (554 feet)
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Length: 365.85 meters (1,200 feet)
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Construction Material: Concrete
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River: Periyar
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Built Between: 1969–1975
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Opened: 1976
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Purpose: Hydroelectric power generation and water storage
The Kuravan-Kurathi Legend
Local folklore adds a mythical charm to this dam. According to tribal legend, the dam is built between two hills – Kuravan Mala and Kurathi Mala – named after a tribal man and woman. Their story of separation and reunion across the river inspired engineers to use these natural rock formations as anchor points for the dam, blending mythology with modern technology.
Idukki Hydroelectric Project
The dam is a part of the Idukki Hydroelectric Project, the biggest hydroelectric power station in Kerala. It is a joint project that includes:
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Idukki Dam (main arch dam)
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Cheruthoni Dam (a concrete gravity dam)
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Kulamavu Dam (an earth-fill dam)
These three dams together create an artificial lake stretching over 60 square kilometers, forming one of the largest reservoirs in the state. The water is tunneled through the mountains to Moolamattom Power House, Kerala’s largest underground hydroelectric plant, where electricity is generated using high-pressure turbines.
Tourist Information
Although the dam is not open to the public year-round due to security restrictions, it is opened during special seasons and festivals. From the dam’s top, one can enjoy panoramic views of the lake, forests, and distant mountains. It is surrounded by lush greenery and offers a peaceful ambiance ideal for nature lovers and photographers.
Nearby attractions include:
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Hill View Park – A well-maintained garden and viewpoint near the dam
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Idukki Wildlife Sanctuary – Surrounds the reservoir, offering opportunities to spot elephants, deer, and various bird species
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Cheruthoni Town – The commercial center closest to the dam, offering lodging and local cuisine
Environmental Significance
Apart from power generation, the dam plays a crucial role in irrigation, flood control, and maintaining the ecological balance in central Kerala. The reservoir and the surrounding forests serve as a major source of water for wildlife and local communities.
Idukki Wildlife Sanctuary
Spread over 77 sq. km., this sanctuary surrounds the Idukki reservoir and is home to elephants, sambar deer, wild boar, jungle cats, and a wide variety of birds and reptiles. Hill View Park and Nadukani Viewpoint near the sanctuary offer exceptional vistas.
Chinnar Wildlife Sanctuary
Located in the rain-shadow region of Devikulam, Chinnar is unique for its dry scrub forest and is one of only two places in India where the Grizzled Giant Squirrel is found. It hosts a wide range of flora and fauna adapted to the arid ecosystem.
Periyar Tiger Reserve, Thekkady
This world-renowned reserve near Kumily offers lake cruises to view elephants, gaur, sambar, and occasionally tigers. The reserve is part of the larger Periyar Wildlife Sanctuary, known for its rich biodiversity and spice plantations around its edges.
Scenic Spots & Hill Stations
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Vagamon: Famous for rolling meadows and religious harmony, this cool destination hosts Thangal Hill, Kurisumala, and Murugan Hill.
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Ramakkalmedu: Offers breathtaking views of the plains of Tamil Nadu and wind-swept highlands.
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Peerumedu: A historic summer retreat with plantations and colonial remnants.
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Grampi (Parunthupara): A hilltop viewpoint surrounded by spice plantations and rocky terrain.
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Kulamavu: A serene spot near the dam, ideal for trekking and boating.
Other Attractions
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Thommankuthu & Keezharkuthu Waterfalls: Known for multiple cascades and opportunities for adventure tourism.
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Malankara Reservoir: Artificial lake offering fishing and boating.
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Moolamattom: Home to Kerala’s largest underground hydroelectric project.
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Palkulamedu: At over 3000 m elevation, this peak offers spectacular views of nearby towns and landscapes.
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Gavi: Located near the Periyar reserve, this is a model eco-tourism destination with dense forest, birding trails, and rare plant species.
The World of Spices
Idukki is one of the primary spice-growing regions in India. It contributes significantly to the cultivation and trade of:
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Cardamom: Known for its aroma and quality, especially grown in areas above 1500 m.
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Pepper: Cultivated across the hills using traditional and modern methods.
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Vanilla: Grown using artificial pollination techniques, often under shade trees.
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Clove, Nutmeg, and Cinnamon: Cultivated in the mid-hills, these spices are essential for both domestic and export use.
The spice farms here are not only an economic asset but also serve as experiential tourism sites, offering guided tours and tastings.
