Tenkasi (South Kasi) is famous for its Ulagamman Temple and its Shiva Temple. The Ulagamman temple was built by Parakrama Pandian, but was shattered by lightning. In the 1990s, the temple was restored with much financial assistance of Sivanthi Adithan and others, and it was given a fresh coat of paint again in 2006 by the same philanthropists. However, the first few feet from the ground has not been painted as that part appears to have survived the lightning. The gopuram or the entry gateway remains among the highest in southern Tamil Nadu. The main deity here is Kasi Viswanathar (Shiva). This temple has three Sannidhis [a unique aspect] - Sivan, Amman and Murugan Sannidhis. This temple has beautiful sculptures and also has musical stone pillars, that emit notes of different pitch when tapped with fingers. The entrance is really grand, with heavy steps. One could view the majestic Temple Gopuram even while entering the town. The Gopuram of the temple welcomes pilgrims with a pleasant cool breeze straight from the nearby Thirikooda Malai.
Tenkasi has the other magnificent Kulasekaranathar Temple, which has been in a closed state for ages. There is also a temple pond in middle of the town, adjoining the Kannimaramman Temple. There are a row of houses along the Kannimariamman Temple, famous among them being the Justice and Advocate villas, such as Kuttalingam Pillai's residence.
Tenkasi has two bus termini and a railway station. There are daily trains such as the Podhigai Express from Chennai to Tenkasi, now it runs up to Shencottah (Sengottai).
Thenmalai, a famous eco-tourism spot in kerala state is a short travel away from Tenkasi. Thenmala is famous for its Deer rehabilitation center, dancing fountain etc.
Tenkasi is also famous for saral (drizzling). During May-August every year, people enjoy saral in Tenkasi.
The main tourist attraction of Tenkasi is Courtallam, with exotic waterfalls and healing spas.
Tenkasi is at the footsteps of Thirikooda Malai (Thiri koodal means the joining of three - convergence of three mountains) - a picturesque place.
Honourable Mr.M.Arunachalam Former Union Cabinet Minister & Seven Times M.P Of Tenkasi,
Famous poet, Thirikooda Rasappa Kavirayar Shankar, Maadan, Rasigamani T.K.C (T.K.Chidambaranatha Mudaliyar), Mr.S.Machendranathan IAS.
Tekasi has 16 Jummah Masjids in different location including Masjid Rahman and Masjid Thowqeeth (run by JAQH - Jamiyathu Ahlil Quran val Hadeed - movement for follower of Quran & Sunnah) all the Masjids conducting lot of social welfare program such, Anti- interest movement, Anti-dowry conference, education aids and awareness, free medical camps etc...
There are many churches in Tenkasi. The Roman Catholic Church is located near the Tenkasi Depot and a number of Protestant churches all around the town.
MSP Velayutha Nadar Lakshmithaimmal Polytechnic College (Pavoorchatram), and MK. V. Kandasamy Nadar Matric School, Tenkasi, are some of the community run institutions at Tenkasi.
Bhagyalakshmi groups run 4 theatres in Tenkasi. The biggest &popular textile showroom in tenkasi is Bombay Stores which celebrated its 75th anniversary recently other textile showrooms includes ALN,haji mustafa, India silk house and K S A emporium.