Start your trip with a visit to Mahabalipuram, a UNESCO World Heritage Site. In the morning, explore the cave temples and bas-reliefs, including the famous Arjuna's Penance. In the afternoon, head to the Shore Temple, an impressive stone temple on the beach. Relax on the beach or take a boat ride in the evening.
Drive to Pondicherry, a former French colony. In the morning, visit the Sri Aurobindo Ashram, a spiritual community founded by Sri Aurobindo and the Mother. In the afternoon, explore the French Quarter with its charming streets, colonial buildings, and boutique shops. In the evening, relax on the Promenade Beach and catch the sunset.
Take an early morning flight to Coimbatore and drive to Ooty, a beautiful hill station in the Nilgiri Mountains. In the morning, ride the Nilgiri Mountain Railway, a UNESCO World Heritage Site, and enjoy the stunning views. In the afternoon, visit the Botanical Garden, a beautiful park with a variety of plants and flowers. In the evening, go boating on Ooty Lake and enjoy the cool weather.
Consider visiting the Brihadeeswara Temple in Thanjavur, a UNESCO World Heritage Site, or taking a day trip to the Mudumalai National Park, a wildlife reserve famous for its elephants. To maximize your fun, try local Tamil cuisine, such as dosa, idli, and sambar, and shop for traditional handicrafts and textiles.