A Tropical land with evergreen forests, dry decidious/thorn forests and scrubs covered hill ranges, Tamil Nadu offers sylvan trails for trekking admirers.

A hill station perched on the Western Ghats, Udhagamandalam, offers several trek routes, which vary in distance, altitudes and terrain. There is a base camp at parsons valley, from where one can start trekking to various points within Western Ghats. The down hills of western Ghats on the North ends up with meeting the extensions of Eastern ghats, where the sprawling Mudumalai Sanctuary lies which opens vistas for Adventure tourists.

Indira Gandhi Wildlife Sanctuary and National Park perched on the Anamalai Hills is a full fledged visitor's centre at Top slip, at an altitude of 740 MSL has all the amenities needed for a naturalist. Some of the places to be visited : Monkey Falls, Aliyar, the Crocodile Breeding Centre at Amaravati, Grass Hills, Attakatti, Mirar, Kullipatti, Manompally, Chinnar, Varagaliar, Manjampatty etc. Topslip is 35 kms from Pollachi for the road and rail head and Coimabatore has the nearest Airport.

Located on the Palani Hills, an off-shoot of the Western Ghat mountain range, Kodaikkanal is a spectacular Summer Resort and Ecological Paradise of Tamil Nadu. A span of 2068 sq kms of hills with varied types of forest cover, Kodaikkanal offers ideal sites for trekking, hang-gliding, angling and golf. Sholas occupy key position. Scrub jungle, decidious, semi evergreen forests form habitats for Nilgiri Langur, flying Squirrel, Sambhar, Gaur, Panther, Hyena, Chameleon and variety of birds.

It is situated 25 kms off Jolarpet Junction, on Chennai-Coimabatore rail track. The hills have a salubrious climate. It has a beautiful environs and a small lake for boating. The trek from Elagiri Hills to Jalagambarai Water Falls at the down hill, takes a couple of hours and is recommended for starters.

Another trek route to Jalagambarai, runs through villages, will take about 4 hours. This trekking trail recommended for normal trekking. A trek through the forests to reach the peak is little tedious.

Elagiri hill is a part of Javvad Hills of eastern ghats. One can reach Alangayam, situated at the foot of the hills. From Vaniyambadi, buses ply to Alangayam, from where a ghat road leads to the top of Javvad Hills surrounded by thick sandal wood forests. This steep road leads to Kavalur, where an Astronomical Observatory is situated. By trekking, one can reach the southern part of the Javvad Hills & reach Polur, a taluk headquarters, which is about 30 kms from Temple Town  Thiruvannamalai.

Kolli hills is the Ancient Kingdom of the celebrated King Ori, renowned for his generous gifts, charity and donations. It is situated at an altitude of 1160 metres. It has rich medical plants and forests.

This is a "Project Tiger" reserve. Lion-tailed Macaque, Nilgiri Langur, Bonnet Macaque and common langur are a plenty. wild dog, deer, pangoline, varied Avifauna and reptiles could also be seen.

Ooty ,short for Ootacamund,(officially, Udhagamandalam , is a town, a municipality and the district capital of the Nilgiris district in the South Indian state of Tamil Nadu. Ootacamund is a popular hill station located in the Nilgiri Hills. Udhagamandalam is the older and official Tamil name for the town. Ooty stands at an approximate height of 9,080 feet (2,767 m) above sea level.

Yercaud is a hill station near Salem, Tamil Nadu, India in the Servarayan range of hills (anglicized as Shevaroys) in the Eastern Ghats. It is at an altitude of 1,500 metres (4,920 feet) above the mean sea level. The town gets its name from the lake located at its center - in Tamil "Yeri" means "lake" and "Kaadu" means "forest". Yercaud is known for coffee plantations and orange groves. It also has an orchidarium run by the Botanical Survey of India. The highest point in Yercaud is the Servarayan temple, which is situated at a height of 5326 feet. Hence the Yercaud hill area is called Shevaroy Hills.

Agasthiyar falls by which the Tamparani river descends into the plains, enhanced with the natural beauty. Approximate height of the falls is 100m+.Sorrounded with hills, the view of the waterfalls is beautiful. One can reach the Agasthiyar Falls and the temple by trekking approximate distance of 3 KM from the foothills.