The Arunachaleswarar Temple, dedicated to Lord Shiva, is one of the largest temples in South India. The temple is spread over 25 acres and has 9 towering gopurams. The main deity of the temple is known as Annamalaiyar or Arunachaleswarar. Visitors can take a temple tour or participate in the daily rituals of the temple. The temple is particularly famous for its annual ten-day Karthigai Deepam festival that attracts millions of visitors from all over the world.
The Tiruvannamalai Girivalam is a 14 km walk around the Annamalai hill, which is considered a sacred activity by many. The walk starts and ends at the Arunachaleswarar Temple, and takes around 3-4 hours to complete. The walk is best done at night, when the weather is cooler and the views are more spectacular. During the walk, visitors can take part in different rituals and stop at the different shrines and temples around the hill. It is thought that the Girivalam cleanses the soul and brings good luck.
The Ramana Ashram is dedicated to the Advaita Vedanta philosopher Ramana Maharshi, who lived there from 1922 until his death in 1950. The ashram is a peaceful and serene place where visitors can learn about Ramana's teachings and attend satsangs, which are sessions of chanting, meditation and wisdom. The ashram also has a bookstore, a library and a guesthouse where visitors can stay.
The Seshadri Swamigal Ashram is dedicated to the saint Sheshadri Swamigal, who lived in Tiruvannamalai in the late 19th century. The ashram is a peaceful and beautiful place, with a stunning garden and a small temple. Visitors can learn about the life of Sheshadri Swamigal and his teachings. The ashram also has a bookstore and a guesthouse where visitors can stay.
For those with less time, consider doing only the Arunachaleswarar Temple and the Girivalam on the first day, and then visit the Ramana Ashram and the Seshadri Swamigal Ashram on the second day. For those with more time, consider spending an extra day in Tiruvannamalai to visit other nearby attractions, such as the Gingee Fort or the Virupaksha Cave.