Amazing Hill Stations of Tamil Nadu
Tamil Nadu is known for its culture and one of the most gorgeous hill stations in India. There plenty of Hill stations in Tamil Nadu, but I am going to say about the most attractive hill stations of Tamil Nadu, which are known for their biodiversity, Wildlife, pleasant climate and offcorse Verdant greenery.
TOP 10 Hill Stations of Tamil Nadu.
1.Coonoor.
Coonoor is the second largest hill stations in India. It is famous for its verdant environs and for a variety of wildflowers and birds. Coonoor provides a perfect setting for activities like trekking and hiking.
Location: Nilgiris District
Major Attractions:
Sims Park
Wellington Golf Course
Droog Fortress
High Field Tea Factory
Hidden Valley
2.Kodaikanal.
Kodaikanal is a hill station located in the Western Ghats of Tamil Nadu. Its name in the Tamil language means "The Gift of the Forest". Kodaikanal is referred to as "Princess of Hill Stations" and has a long history as a retreat and popular tourist destination.
Location: Dindigul District
Major Attractions:
Kodaikanal lake
Pillar Rock Viewpoint
Silver Cascade Falls
Guna Caves
Bryant Park
Coaker's walk
3.Ooty.
Ooty is Officially known as Udagamandalam. Local residents call it Queen of Hills. Ooty once the Summer Capital of Madras Presidency under the British, can be safely regarded as "India's Switzerland".Ooty is given the qualification for the same owing to nature's abundant blessings in terms of climate, scenic splendour, local sights and sounds, it's wealth of birds and beasts and of course, it's homegrown beverages of tea and coffee.
Location: Nilgiris District
Major Attractions:
Adam's Fountain
Doddabeta Mountain
Ooty Lake and Boathouse
Government Rose Garden
Pykara WaterFalls
St. Stephen's Church
4.Kotagiri.
One of the popular hill stations in the Nilgiris besides Ooty (29 km), Coonoor (18 km), Kotagiri is your quintessential plantation. Situated at an elevation of 5,882 ft. The name Kotagiri means 'mountains of Kotas' (the Nilgiris hills have been the traditional home of the Kota tribe). Kotagiri's importance fell when the ghat road of Mettupalayam at the foothills of Coonoor was built. Kotagiri offers plenty of opportunities for trekking and rock climbing.
Location: Nilgiris District
Major Attractions:
The Dodabetta Range
Catherine Falls
Elk Falls
Rangaswami Pillar 
5. Velliangiri Hills.
The Velliangiri Mountains, a part of the Nilgiris Biosphere Reserve. Known as the "Sapthagiri, 7 Hills-Seven Mountains", these mountains are held and revered on par with the spiritually most powerful place on the planet - Mount Kailash, the legendary abode of Lord Shiva. On the top of the Velliangiri Mountains, Shiva is worshipped as Swayambhu.
Location: Coimbatore District
Major Attractions:
Lord Shiva temple
Seven Hills
Trekking
6. Yelagiri
Yelagiri is a peaceful and serene hill station that has rapidly progressed to become a well known holiday destination. Yelagiri has plenty of spectacular green valleys, rose gardens, and orchards. It lies at a height of 920 meters over sea level. It's a perfect destination for peace-seekers, adventure-enthusiasts and for spending their holidays in the lap of nature and away from the disorderly and chaotic life of the city.
Location: Vellore District
Major Attractions:
Jagalamparai Falls
Swamimalai
Velavan temple
Nature park
Punganur Lake
Yelagiri Wild Zone
7. Kolli Hills
Kollai hills referred to as the Kolli Malai, and it means the 'Mountain of Death. The hills are almost 1000 to 1300 meters in height that cover 280 sq. km. You will get nearly 70 hairpin bends, which take the tourist to the top of the hill. The early Hindu literature talks about the actual existence of the Kolli Pavai Ghost on the top of these hills and in this way, they earned the ultimate destination.
Location: Namakkal District
Major Attractions:
Agaya Gangai Waterfalls
Masila Falls
Arpaleeswar temple
Siddhar caves
8. Valparai
Valparai (originally known as Poonachimalai) is Taluk and Hill station. It consists of Anamalai Tiger Reserve. It's located at 7102 feet above sea level on the Anaimalai Hills range of the Western Ghats. The foothill starts exactly from Monkey Falls which is at the distance of 38 km to Valparai. The route of Valparai from the foothills consists of 40 hairpin bends.
Location: Coimbatore District
Major Attractions:
Shalayar Dam
Chinnakallar Waterfalls
Birla Falls
Manampalli Forrest 
9. Ketti Valley
Ketti Valley is also called 'Ketti' is a small town nestled in a large valley of the same name. Upper Ketti is another village called Yellanahall. Ketti Valley is India's 2nd largest inhabited valley, offers astounding views of the blue mountain hills and the surrounding region. The Ketti valley boasts of an excellent location with a surreal setting where you can re-discover the inner peace in yourself to die for. Owing to its flourishing wildlife, lushing waterfalls and lush greenery, the valley has become a famous vantage point for all those who want to soak in nature at its best.
Location: Nilgiris District
Major Attractions:
Ooty Lake
Rose Gardens
Pykara Lake
10. Yercaud
Yercaud lies in the Shevaroys range of hills. It's situated at an altitude of 1515 meters above sea level, the highest point in Yercaud is the Servarayan temple at 1623 meters. Yercaud is known for its orange groves and fruits, coffee and spice plantations. Yercaud Lake has a boathouse and surrounded by gardens and woods. On the lake eastern shore, Anna park has local plants and a Japanese garden with bonsai. To the southwest, the lady's Seat vantage point has a watchtower with a telescope.
Location: Salem District
Major Attractions:
Shevaroy hills
Anna Park
Killyur Falls
Emerald lake
Pagoda Point 
