Start your journey from Chennai to Kotaiyam by visiting the UNESCO World Heritage Site, Mahabalipuram. It is renowned for its ancient rock-cut temples and caves. You can explore the Shore Temple, Pancha Rathas, and Arjuna's Penance, which is a masterpiece of ancient Indian art. You can also visit the Mahabalipuram Beach, which is a popular spot among locals and tourists alike.
Next, head to Pondicherry, a former French colony known for its charming colonial architecture. You can take a stroll along the seaside promenade, visit the Aurobindo Ashram to learn about the teachings of Sri Aurobindo, or explore the French Quarter with its colorful buildings and quaint cafes. Make sure to try some delicious French pastries and croissants while you're here.
On the second day of your trip, make your way to Thanjavur, also known as the Rice Bowl of Tamil Nadu. The Brihadeeswarar Temple is a must-visit attraction, known for its beautiful architecture and intricate carvings. You can also explore the Thanjavur Palace and Art Gallery, which houses a collection of rare paintings and artifacts. Make sure to try some local delicacies like the Thanjavur Marathi and Kandharappam.
End your trip with a visit to Kumbakonam, a town famous for its temples and silk sarees. The Adi Kumbeswarar Temple and the Mahamaham Tank are popular attractions here. You can also take a tour of the silk weaving factories and purchase some beautiful sarees as a souvenir. Don't forget to try the famous Kumbakonam degree coffee before you leave.